核素列表

提示：此條目頁的主題不是核素表。

下表列出了所有天然同位素（包括半衰期極短的）以及902個穩定的或半衰期大於一小時的所有核素。

圖表

穩定核素

理論上自發裂變比較可能發生在原子序大於40的元素，但尚未被觀測到，目前只有發現原子序大於82（鉛）的自發自發裂變核素。

no	核素	A	Z	N	能量	半衰期	衰變方式	衰變能量 (Mev)
1	56Fe	56	26	30	7000915356700000000♠9.153567
2	62Ni	62	28	34	7000914787699999999♠9.147877
3	60Ni	60	28	32	7000914586199999999♠9.145862
4	58Fe	58	26	32	7000914293799999999♠9.142938
5	52Cr	52	24	28	7000913703700000000♠9.137037
6	57Fe	57	26	31	7000912711900000000♠9.127119
7	59Co	59	27	32	7000912604600000000♠9.126046
8	54Cr	54	24	30	7000912563300000000♠9.125633
9	61Ni	61	28	33	7000912412900000000♠9.124129
10	55Mn	55	25	30	7000912061100000000♠9.120611
11	64Ni	64	28	36	7000911975400000000♠9.119754
12	66Zn	66	30	36	7000911525800000000♠9.115258
13	53Cr	53	24	29	7000911443500000000♠9.114435
14	63Cu	63	29	34	7000911227200000000♠9.112272
15	65Cu	65	29	36	7000910615400000000♠9.106154
16	68Zn	68	30	38	7000910084500000000♠9.100845
17	50Ti	50	22	28	7000909986100000000♠9.099861
18	51V	51	23	28	7000909488400000000♠9.094884
19	67Zn	67	30	37	7000908446799999999♠9.084468
20	48Ti	48	22	26	7000908148800000000♠9.081488
21	72Ge	72	32	40	7000907946500000000♠9.079465
22	70Ge	70	32	38	7000907937199999999♠9.079372
23	69Ga	69	31	38	7000907607800000000♠9.076078
24	88Sr	88	38	50	7000907043799999999♠9.070438
25	74Ge	74	32	42	7000906352200000000♠9.063522
26	49Ti	49	22	27	7000906232299999999♠9.062323
27	76Se	76	34	42	7000906148499999999♠9.061485
28	71Ga	71	31	40	7000905921800000000♠9.059218
29	78Se	78	34	44	7000905884200000000♠9.058842
30	90Zr	90	40	50	7000905763100000000♠9.057631
31	89Y	89	39	50	7000905674300000000♠9.056743
32	86Sr	86	38	48	7000905416000000000♠9.054160
33	82Kr	82	36	46	7000905412600000000♠9.054126
34	84Kr	84	36	48	7000905264900000000♠9.052649
35	73Ge	73	32	41	7000904800600000000♠9.048006
36	87Sr	87	38	49	7000904696399999999♠9.046964
37	75As	75	33	42	7000904509300000000♠9.045093
38	80Kr	80	36	44	7000904498400000000♠9.044984
39	77Se	77	34	43	7000904015300000000♠9.040153
40	85Rb	85	37	48	7000903799800000000♠9.037998
41	91Zr	91	40	51	7000903715600000000♠9.037156
42	83Kr	83	36	47	7000903496600000000♠9.034966
43	79Br	79	35	44	7000903422000000000♠9.034220
44	81Br	81	35	46	7000903397900000000♠9.033979
45	92Zr	92	40	52	7000903278300000000♠9.032783
46	46Ti	46	22	24	7000903053199999999♠9.030532
47	47Ti	47	22	25	7000902733600000000♠9.027336
48	44Ca	44	20	24	7000901379300000000♠9.013793
49	42Ca	42	20	22	7000898911599999999♠8.989116
50	38Ar	38	18	20	7000898487000000000♠8.984870
51	45Sc	45	21	24	7000898394500000000♠8.983945
52	43Ca	43	20	23	7000896455100000000♠8.964551
53	34S	34	16	18	7000895167500000000♠8.951675
54	40Ar	40	18	22	7000894732499999999♠8.947325
55	41K	41	19	22	7000893862300000000♠8.938623
56	39K	39	19	20	7000893817400000000♠8.938174
57	37Cl	37	17	20	7000892976000000000♠8.929760
58	36S	36	16	20	7000892310799999999♠8.923108
59	35Cl	35	17	18	7000890028500000000♠8.900285
60	30Si	30	14	16	7000888576100000000♠8.885761
61	32S	32	16	16	7000888431800000000♠8.884318
62	33S	33	16	17	7000887696399999999♠8.876964
63	31P	31	15	16	7000885974399999999♠8.859744
64	28Si	28	14	14	7000883893499999999♠8.838935
65	29Si	29	14	15	7000882632699999999♠8.826327
66	27Al	27	13	14	7000870824200000000♠8.708242
67	26Mg	26	12	14	7000869498100000000♠8.694981
68	24Mg	24	12	12	7000865191100000000♠8.651911
69	25Mg	25	12	13	7000859904700000000♠8.599047
70	23Na	23	11	12	7000848567500000000♠8.485675
71	22Ne	22	10	12	7000843608700000000♠8.436087
72	20Ne	20	10	10	7000842342200000000♠8.423422
73	16O	16	8	8	7000836739000000000♠8.367390
74	21Ne	21	10	11	7000834428000000000♠8.344280
75	19F	19	9	10	7000814961200000000♠8.149612
76	17O	17	8	9	7000811890400000000♠8.118904
77	18O	18	8	10	7000811474400000000♠8.114744
78	12C	12	6	6	7000807132700000000♠8.071327
79	15N	15	7	8	7000806459400000000♠8.064594
80	14N	14	7	7	7000786682700000000♠7.866827
81	13C	13	6	7	7000783094300000000♠7.830943
82	4He	4	2	2	7000746507700000000♠7.465077
83	11B	11	5	6	7000728333700000000♠7.283337
84	10B	10	5	5	7000686625700000000♠6.866257
85	9Be	9	4	5	7000681048300000000♠6.810483
86	7Li	7	3	4	7000594159900000000♠5.941599
87	6Li	6	3	3	7000572352700000000♠5.723527
88	3He	3	2	1	7000309432700000000♠3.094327
89	2H	2	1	1	7000150332700000000♠1.503327
90	1H	1	1	0	6999782327000000000♠0.782327
91	94Mo	94	42	52	7000901185600000000♠9.011856		(SF)	< 4.485
92	93Nb	93	41	52	7000900905100000000♠9.009051		(SF)	< 0.943
93	96Mo	96	42	54	7000899622900000000♠8.996229		(SF)	< 5.771
94	95Mo	95	42	53	7000899456400000000♠8.994564		(SF)	< 4.531
95	97Mo	97	42	55	7000897380600000000♠8.973806		(SF)	< 6.226
96	98Ru	98	44	54	7000897157200000000♠8.971572		(SF)	< 11.690
97	100Ru	100	44	56	7000896351700000000♠8.963517		(SF)	< 13.634
98	99Ru	99	44	55	7000895634800000000♠8.956348		(SF)	< 12.368
99	102Ru	102	44	58	7000894483700000000♠8.944837		(SF)	< 12.049
100	101Ru	101	44	57	7000894211700000000♠8.942117		(SF)	< 13.205
101	104Pd	104	46	58	7000893084700000000♠8.930847		(SF)	< 18.969
102	103Rh	103	45	58	7000892591000000000♠8.925910		(SF)	< 15.462
103	106Pd	106	46	60	7000891946000000000♠8.919460		(SF)	< 16.806
104	105Pd	105	46	59	7000891335600000000♠8.913356		(SF)	< 18.247
105	108Pd	108	46	62	7000890025299999999♠8.900253		(SF)	< 16.102
106	107Ag	107	47	60	7000889751399999999♠8.897514		(SF)	< 20.512
107	110Cd	110	48	62	7000889271800000000♠8.892718		(SF)	< 22.486
108	109Ag	109	47	62	7000888530000000000♠8.885300		(SF)	< 19.241
109	112Cd	112	48	64	7000888007700000000♠8.880077		(SF)	< 20.733
110	111Cd	111	48	63	7000887544499999999♠8.875445		(SF)	< 21.883
111	114Sn	114	50	64	7000886572200000000♠8.865722		(SF)	< 27.965
112	113In	113	49	64	7000886221200000000♠8.862212		(SF)	< 24.281
113	116Sn	116	50	66	7000886036200000000♠8.860362		(SF)	< 25.905
114	115Sn	115	50	65	7000885424899999999♠8.854249		(SF)	< 26.791
115	118Sn	118	50	68	7000884807300000000♠8.848073		(SF)	< 23.815
116	117Sn	117	50	67	7000884397700000000♠8.843977		(SF)	< 25.334
117	120Sn	120	50	70	7000883053700000000♠8.830537		(SF)	< 21.824
118	119Sn	119	50	69	7000882820100000000♠8.828201		(SF)	< 23.140
119	121Sb	121	51	70	7000881178300000000♠8.811783		(SF)	< 25.718
120	122Te	122	52	70	7000881160600000000♠8.811606		(SF)	< 30.974
121	124Te	124	52	72	7000880136400000000♠8.801364		(SF)	< 28.221
122	123Sb	123	51	72	7000879672700000000♠8.796727		(SF)	< 23.454
123	126Te	126	52	74	7000878612600000000♠8.786126		(SF)	< 26.011
124	125Te	125	52	73	7000878350500000000♠8.783505		(SF)	< 26.966
125	128Xe	128	54	74	7000877335899999999♠8.773359		(SF)	< 35.047
126	127I	127	53	74	7000877198100000000♠8.771981		(SF)	< 29.961
127	130Xe	130	54	76	7000876272500000000♠8.762725		(SF)	< 32.483
128	129Xe	129	54	75	7000875890399999999♠8.758904		(SF)	< 33.947
129	132Xe	132	54	78	7000874769500000000♠8.747695		(SF)	< 30.885
130	131Xe	131	54	77	7000874625300000000♠8.746253		(SF)	< 31.140
131	134Ba	134	56	78	7000873513299999999♠8.735133		(SF)	< 40.520
132	133Cs	133	55	78	7000873351500000000♠8.733515		(SF)	< 34.753
133	136Ba	136	56	80	7000872490799999999♠8.724908		(SF)	< 38.041
134	135Ba	135	56	79	7000872207200000000♠8.722072		(SF)	< 39.357
135	137Ba	137	56	81	7000871162799999999♠8.711628		(SF)	< 35.722
136	138Ba	138	56	82	7000871090399999999♠8.710904		(SF)	< 34.302
137	140Ce	140	58	82	7000870049400000000♠8.700494		(SF)	< 43.633
138	139La	139	57	82	7000869889200000000♠8.698892		(SF)	< 38.944
139	141Pr	141	59	82	7000868140500000000♠8.681405		(SF)	< 48.450
140	142Nd	142	60	82	7000867664600000000♠8.676646		(SF)	< 53.264
141	156Gd	156	64	92	7000853634200000000♠8.536342		(SF)	< 71.541
142	157Gd	157	64	93	7000852247800000000♠8.522478		(SF)	< 70.531
143	158Gd	158	64	94	7000851877500000000♠8.518775		(SF)	< 70.965
144	159Tb	159	65	94	7000850868000000000♠8.508680		(SF)	< 74.878
145	163Dy	163	66	97	7000847860700000000♠8.478607		(SF)	< 79.055
146	164Dy	164	66	98	7000847360400000000♠8.473604		(SF)	< 79.499
147	54Fe	54	26	28	7000911304000000000♠9.113040		(β+β+)	0.6800
148	58Ni	58	28	30	7000910973600000000♠9.109736		(β+β+)	1.9258
149	74Se	74	34	40	7000904717499999999♠9.047175		(β+β+)	1.2094
150	80Se	80	34	46	7000904332600000000♠9.043326		(β−β−)	0.1339
151	86Kr	86	36	50	7000903953200000000♠9.039532		(β−β−)	1.2556
152	84Sr	84	38	46	7000903137500000000♠9.031375		(β+β+)	1.7867
153	92Mo	92	42	50	7000901486000000000♠9.014860		(β+β+)	1.6491
154	94Zr	94	40	54	7000899969800000000♠8.999698		(β−β−)	1.1440
155	98Mo	98	42	56	7000897042600000000♠8.970426		(β−β−)	0.1125
156	96Ru	96	44	52	7000896791100000000♠8.967911		(β+β+)	2.7188
157	102Pd	102	46	56	7000893333700000000♠8.933337		(β+β+)	1.1720
158	104Ru	104	44	60	7000891833699999999♠8.918337		(β−β−)	1.2997
159	36Ar	36	18	18	7000891110499999999♠8.911105		(β+β+)	0.4335
160	110Pd	110	46	64	7000887450000000000♠8.874500		(β−β−)	1.9997
161	112Sn	112	50	62	7000886294400000000♠8.862944		(β+β+)	1.9222
162	122Sn	122	50	72	7000880859000000000♠8.808590		(β−β−)	0.3661
163	124Sn	124	50	74	7000878291400000000♠8.782914		(β−β−)	2.2870
164	126Xe	126	54	72	7000877901000000000♠8.779010		(β+β+)	0.8973
165	143Nd	143	60	83	7000865879200000000♠8.658792		(α)	0.5214
166	144Sm	144	62	82	7000864057700000000♠8.640577		(β+β+)	1.7811
167	145Nd	145	60	85	7000863296300000000♠8.632963		(α)	1.5784
168	146Nd	146	60	86	7000862564899999999♠8.625649		(β−β−, α)	0.0702, 1.1822
169	148Nd	148	60	88	7000859438800000000♠8.594388		(β−β−, α)	1.9288, 0.5986
170	150Sm	150	62	88	7000858504300000000♠8.585043		(α)	1.4495
171	152Sm	152	62	90	7000856322700000000♠8.563227		(α)	0.2203
172	153Eu	153	63	90	7000855089300000000♠8.550893		(α)	0.2736
173	154Gd	154	64	90	7000854998500000000♠8.549985		(α)	0.0812
174	154Sm	154	62	92	7000854185700000000♠8.541857		(β−β−)	1.2510
175	155Gd	155	64	91	7000853634100000000♠8.536341		(α)	0.0812
176	156Dy	156	66	90	7000852344300000000♠8.523443		(β+β+, α)	2.0108, 1.7579
177	158Dy	158	66	92	7000851697300000000♠8.516973		(β+β+, α)	0.2833, 0.8748
178	160Dy	160	66	94	7000850681600000000♠8.506816		(α)	0.4387
179	161Dy	161	66	95	7000849406699999999♠8.494067		(α)	0.3443
180	162Dy	162	66	96	7000849223400000000♠8.492234		(α)	0.0847
181	162Er	162	68	94	7000848085200000000♠8.480852		(β+β+, α)	1.8445, 1.6460
182	164Er	164	68	96	7000847346200000000♠8.473462		(β+β+, α)	0.0241, 1.3041
183	165Ho	165	67	98	7000846468900000000♠8.464689		(α)	0.1394
184	166Er	166	68	98	7000846248200000000♠8.462482		(α)	0.8309
185	167Er	167	68	99	7000845035000000000♠8.450350		(α)	0.6657
186	168Er	168	68	100	7000844630800000000♠8.446308		(α)	0.5527
187	168Yb	168	70	98	7000843784499999999♠8.437845		(β+β+, α)	1.4221, 1.9508
188	169Tm	169	69	100	7000843393100000000♠8.433931		(α)	1.2004
189	170Yb	170	70	100	7000842879200000000♠8.428792		(α)	1.7376
190	170Er	170	68	102	7000842494499999999♠8.424945		(β−β−, α)	0.6536, 0.0502
191	171Yb	171	70	101	7000841818200000000♠8.418182		(α)	1.5589
192	172Yb	172	70	102	7000841586399999999♠8.415864		(α)	1.3103
193	173Yb	173	70	103	7000840402300000000♠8.404023		(α)	0.9459
194	174Yb	174	70	104	7000839862400000000♠8.398624		(α)	0.7401
195	175Lu	175	71	104	7000838658900000000♠8.386589		(α)	1.6197
196	176Hf	176	72	104	7000838142700000000♠8.381427		(α)	2.2550
197	177Hf	177	72	105	7000837013900000000♠8.370139		(α)	2.2449
198	178Hf	178	72	106	7000836595799999999♠8.365958		(α)	2.0832
199	179Hf	179	72	107	7000835329300000000♠8.353293		(α)	1.8065
200	180Hf	180	72	108	7000834793000000000♠8.347930		(α)	1.2828
201	181Ta	181	73	108	7000833896100000000♠8.338961		(α)	1.5259
202	185Re	185	75	110	7000830820400000000♠8.308204		(α)	2.1947
203	187Os	187	76	111	7000829174600000000♠8.291746		(α)	2.7202
204	188Os	188	76	112	7000829013800000000♠8.290138		(α)	2.1426
205	189Os	189	76	113	7000827759900000000♠8.277599		(α)	1.9757
206	190Os	190	76	114	7000827504500000000♠8.275045		(α)	1.3784
207	191Ir	191	77	114	7000826350800000000♠8.263508		(α)	2.0839
208	192Pt	192	78	114	7000826035300000000♠8.260353		(α)	2.4181
209	192Os	192	76	116	7000825820200000000♠8.258202		(β−β−, α)	0.4135, 0.3622
210	194Pt	194	78	116	7000825051900000000♠8.250519		(α)	1.5045
211	193Ir	193	77	116	7000825025900000000♠8.250259		(α)	1.0173
212	195Pt	195	78	117	7000823951600000000♠8.239516		(α)	1.1581
213	196Pt	196	78	118	7000823789599999999♠8.237896		(α)	0.7942
214	196Hg	196	80	116	7000823371000000000♠8.233710		(β+β+, α)	0.8197, 2.0273
215	197Au	197	79	118	7000822940400000000♠8.229404		(α)	0.9545
216	198Hg	198	80	118	7000822766300000000♠8.227663		(α)	1.3833
217	198Pt	198	78	120	7000822237800000000♠8.222378		(β−β−, α)	1.0472, 0.0870
218	199Hg	199	80	119	7000821980499999999♠8.219805		(α)	0.8242
219	200Hg	200	80	120	7000821884800000000♠8.218848		(α)	0.7178
220	201Hg	201	80	121	7000820895600000000♠8.208956		(α)	0.3341
221	202Hg	202	80	122	7000820670299999999♠8.206703		(α)	0.1363
222	203Tl	203	81	122	7000819823000000000♠8.198230		(α)	0.9108
223	204Hg	204	80	124	7000819235800000000♠8.192358		(β−β−)	0.4163
224	205Tl	205	81	124	7000818752600000000♠8.187526		(α)	0.1567
225	206Pb	206	82	124	7000818679100000000♠8.186791		(α)	1.1366
226	207Pb	207	82	125	7000817979100000000♠8.179791		(α)	0.3915
227	208Pb	208	82	126	7000817588800000000♠8.175888		(α)	0.5188

下面的穩定核素是已觀測到放射性的不穩定核素候選：

no 核素 A Z N 能量 半衰期（秒） 衰變方式 衰變能量 (MeV)  228 134Xe 134 54 80 7000872897300000000♠8.728973 > 7030183000000000000♠1.830×1030 β−β− 0.825  229 40Ca 40 20 20 7000894248500000000♠8.942485 > 7028946700000000000♠9.467×1028 β+β+ 0.194  230 132Ba 132 56 76 7000874128800000000♠8.741288 > 7028946700000000000♠9.467×1028 β+β+ 0.846  231 160Gd 160 64 96 7000849600900000000♠8.496009 > 7026978300000000000♠9.783×1026 β−β− 1.729  232 184W 184 74 110 7000831973700000000♠8.319737 > 7026915199999999999♠9.152×1026 α 1.656  233 186W 186 74 112 7000829987300000000♠8.299873 > 7026852100000000000♠8.521×1026 α 1.123  234 183W 183 74 109 7000832469900000000♠8.324699 > 7026410200000000000♠4.102×1026 α 1.680  235 182W 182 74 108 7000833642399999999♠8.336424 > 7026261900000000000♠2.619×1026 α 1.772  236 114Cd 114 48 66 7000886098500000000♠8.860985 > 7026202000000000000♠2.020×1026 β−β− 0.540  237 50Cr 50 24 26 7000907651700000000♠9.076517 > 7025410200000000000♠4.102×1025 β+β+ 1.167  238 108Cd 108 48 60 7000889773500000000♠8.897735 > 7025315600000000000♠3.156×1025 β+β+ 0.272  239 142Ce 142 58 84 7000866666599999999♠8.666666 > 7024820500000000000♠8.205×1024 β−β−, (α) 1.417, 1.298  240 106Cd 106 48 58 7000889332699999999♠8.893327 > 7024820500000000000♠8.205×1024 β+β+ 2.770  241 176Yb 176 70 106 7000837527100000000♠8.375271 > 7024504900000000000♠5.049×1024 β−β−, (α) 1.083, 0.570  242 204Pb 204 82 122 7000819441400000000♠8.194414 > 7024441800000000000♠4.418×1024 α 1.972  243 123Te 123 52 71 7000879630200000000♠8.796302 > 7024290300000000000♠2.903×1024 β+ 0.052  244 64Zn 64 30 34 7000910263400000000♠9.102634 > 7023883600000000000♠8.836×1023 (β+β+) 1.096  245 120Te 120 52 68 7000881636900000000♠8.816369 > 7023694299999999999♠6.943×1023 β+β+ 1.700  246 70Zn 70 30 40 7000906510900000000♠9.065109 > 7023410200000000000♠4.102×1023 β−β− 0.998  247 46Ca 46 20 26 7000900904700000000♠9.009047 > 7022883600000000000♠8.836×1022 β−β− 0.988  248 149Sm 149 62 87 7000858905800000000♠8.589058 > 7022631200000000000♠6.312×1022 α 1.870  249 180mTa 180 73 107 7000834276700000000♠8.342767 > 7022378700000000000♠3.787×1022 (β−, K, α) 0.783, 0.929, 2.103  250 138Ce 138 58 80 7000870587800000000♠8.705878 > 7021284000000000000♠2.840×1021 β+β+ 0.694  251 136Ce 136 58 78 7000870712200000000♠8.707122 > 7021220900000000000♠2.209×1021 β+β+ 2.419

原生放射性核素

no 核素 能量 半衰期（秒） 衰變方式 衰變能量（MeV） 半衰期（年） 252 128Te 7000874326100000000♠8.743261 7031694000000000000♠6.94×1031 β−β− 0.868 7024220000000000000♠2.2×1024 253 124Xe 7000877826400000000♠8.778264 7029568000000000000♠5.68×1029 β+β+ 2.864 7022180000000000000♠1.8×1022 254 78Kr 7000902234900000000♠9.022349 7029290000000000000♠2.90×1029 β+β+ 2.846 7021919999999999999♠9.2×1021 255 136Xe 7000870680499999999♠8.706805 7028750000000000000♠7.5×1028 β−β− 2.462 7021238000000000000♠2.38×1021 256 76Ge 7000903465600000000♠9.034656 7028564230000000000♠5.6423×1028 β−β− 2.039 7021180000000000000♠1.8×1021 257 130Ba 7000874257400000000♠8.742574 7028379000000000000♠3.79×1028 KK 2.620 7021120000000000000♠1.2×1021 258 82Se 7000901759599999999♠9.017596 7027340800000000000♠3.408×1027 β−β− 2.995 7020110000000000000♠1.1×1020 259 116Cd 7000883614600000000♠8.836146 7026978300000000000♠9.783×1026 β−β− 2.809 7019310200000000000♠3.102×1019 260 48Ca 7000899245200000000♠8.992452 7026725800000000000♠7.258×1026 β−β−, β− 4.274, 0.2822 7019230100000000000♠2.301×1019 261 96Zr 7000896135900000000♠8.961359 7026630000000000000♠6.3×1026 β−β−, β− 3.348, 0.1606 7019200000000000000♠2.0×1019 262 209Bi 7000815868900000000♠8.158689 7026599600000000000♠5.996×1026 α 3.137 7019190000000000000♠1.9×1019 263 130Te 7000876657800000000♠8.766578 7026277700000000000♠2.777×1026 β−β− 2.530 7018880600000000000♠8.806×1018 264 150Nd 7000856259400000000♠8.562594 7026249299999999999♠2.493×1026 β−β− 3.367 7018790500000000000♠7.905×1018 265 100Mo 7000893316699999999♠8.933167 7026246099999999999♠2.461×1026 β−β− 3.035 7018780400000000000♠7.804×1018 266 151Eu 7000856575900000000♠8.565759 7026157800000000000♠1.578×1026 α 1.9644 7018500400000000000♠5.004×1018 267 180W 7000834712700000000♠8.347127 7025568000000000000♠5.680×1025 α 2.509 7018180100000000000♠1.801×1018 268 50V 7000905575900000000♠9.055759 7024441800000000000♠4.418×1024 β+, β− 2.205, 1.038 7017139999999999999♠1.4×1017 269 113Cd 7000885937200000000♠8.859372 7023243000000000000♠2.430×1023 β− 0.321 7015770000000000000♠7.7×1015 270 148Sm 7000860742300000000♠8.607423 7023220900000000000♠2.209×1023 α 1.986 7015700500000000000♠7.005×1015 271 144Nd 7000865294699999999♠8.652947 7022722700000000000♠7.227×1022 α 1.905 7015229200000000000♠2.292×1015 272 186Os 7000830250800000000♠8.302508 7022631200000000000♠6.312×1022 α 2.823 7015200200000000000♠2.002×1015 273 174Hf 7000839228700000000♠8.392287 7022631200000000000♠6.312×1022 α 2.497 7015200200000000000♠2.002×1015 274 115In 7000884991000000000♠8.849910 7022139200000000000♠1.392×1022 β− 0.499 7014440000000000000♠4.4×1014 275 152Gd 7000856286800000000♠8.562868 7021340800000000000♠3.408×1021 α 2.203 7014110000000000000♠1.1×1014 276 184Os 7000831185000000000♠8.311850 7020353000000000000♠3.53×1020 α 2.963 7013112000000000000♠1.12×1013 277 190Pt 7000826776400000000♠8.267764 7019205100000000000♠2.051×1019 α 3.252 7011650000000000000♠6.5×1011 278 147Sm 7000861059300000000♠8.610593 7018334500000000000♠3.345×1018 α 2.310 7011106100000000000♠1.061×1011 279 138La 7000869832000000000♠8.698320 7018321900000000000♠3.219×1018 K, β− 1.737, 1.044 7011102099999999999♠1.021×1011 280 87Rb 7000904371800000000♠9.043718 7018156800000000000♠1.568×1018 β− 0.283 7010497200000000000♠4.972×1010 281 187Re 7000829173200000000♠8.291732 7018130000000000000♠1.300×1018 β−, α 0.0026, 1.653 7010412200000000000♠4.122×1010 282 176Lu 7000837466500000000♠8.374665 7018118700000000000♠1.187×1018 β− 1.193 7010376400000000000♠3.764×1010 283 232Th 7000791853300000000♠7.918533 7017443400000000000♠4.434×1017 α, SF 4.083 7010140600000000000♠1.406×1010 284 238U 7000787255100000000♠7.872551 7017141000000000000♠1.410×1017 α, SF 4.270 7009447100000000000♠4.471×109 285 40K 7000890970699999999♠8.909707 7016393800000000000♠3.938×1016 β−, K, β+ 1.311, 1.505, 1.505 7009125000000000000♠1.25×109 286 235U 7000789719800000000♠7.897198 7016222200000000000♠2.222×1016 α, SF 4.679 7008704000000000000♠704×106 287 146Sm 7000862613600000000♠8.626136 7015325000000000000♠3.250×1015 α 2.529 7008103000000000000♠103×106 288 244Pu 7000782622100000000♠7.826221 7015252500000000000♠2.525×1015 α, SF 4.666 7007800000000000000♠80×106

非原生放射性核素

半衰期低於8千萬年的核素。

no	核素	能量	半衰期（秒）	衰變方式	半衰期（年或日）
289	92Nb	7000901098000000000♠9.010980	7015109500000000000♠1.095×1015	K, β−	7007347000000000000♠3.470×107 y
290	236U	7000789147000000000♠7.891470	7014739100000000000♠7.391×1014	α, SF	7007234200000000000♠2.342×107 y
291	205Pb	7000818727900000000♠8.187279	7014545899999999999♠5.459×1014	β+	7007173000000000000♠1.730×107 y
292	129I	7000875739699999999♠8.757397	7014495500000000000♠4.955×1014	β−	7007157000000000000♠1.570×107 y
293	247Cm	7000780600800000000♠7.806008	7014492300000000000♠4.923×1014	α	7007156000000000000♠1.560×107 y
294	182Hf	7000832439900000000♠8.324399	7014280900000000000♠2.809×1014	β−	7006890100000000000♠8.901×106 y
295	107Pd	7000889719700000000♠8.897197	7014205100000000000♠2.051×1014	β−	7006649900000000000♠6.499×106 y
296	98Tc	7000895324600000000♠8.953246	7014132500000000000♠1.325×1014	β−	7006419900000000000♠4.199×106 y
297	53Mn	7000910317500000000♠9.103175	7014118000000000000♠1.180×1014	β+	7006373900000000000♠3.739×106 y
298	210mBi	7000814047300000000♠8.140473	7013959400000000000♠9.594×1013	α	7006257961500000000♠2.579615×106 y
299	154Dy	7000852845700000000♠8.528457	7013946700000000000♠9.467×1013	α	7006300000000000000♠3.000×106 y
300	60Fe	7000909486100000000♠9.094861	7013826800000000000♠8.268×1013	β−	7006262000000000000♠2.620×106 y
301	97Tc	7000897050300000000♠8.970503	7013820300000000000♠8.203×1013	β+	7006260000000000000♠2.600×106 y
302	135Cs	7000872008200000000♠8.720082	7013725800000000000♠7.258×1013	β−	7006230000000000000♠2.300×106 y
303	237Np	7000788198900000000♠7.881989	7013676600000000000♠6.766×1013	α, SF	7006214400000000000♠2.144×106 y
304	150Gd	7000857645400000000♠8.576454	7013564900000000000♠5.649×1013	α	7006179000000000000♠1.790×106 y
305	93Zr	7000900806900000000♠9.008069	7013482800000000000♠4.828×1013	β−	7006153000000000000♠1.530×106 y
306	10Be	7000681065700000000♠6.810657	7013476500000000000♠4.765×1013	β−	7006151000000000000♠1.510×106 y
307	26Al	7000854095399999999♠8.540954	7013226300000000000♠2.263×1013	β+	7005717100000000000♠7.171×105 y
308	242Pu	7000784521800000000♠7.845218	7013118300000000000♠1.183×1013	α, SF	7005374900000000000♠3.749×105 y
309	208Bi	7000816204900000000♠8.162049	7013116100000000000♠1.161×1013	β+	7005367900000000000♠3.679×105 y
310	248Cm	7000779958600000000♠7.799586	7013109800000000000♠1.098×1013	α, SF	7005347900000000000♠3.479×105 y
311	36Cl	7000889138000000000♠8.891380	7012949900000000000♠9.499×1012	β−, β+	7005301000000000000♠3.010×105 y
312	79Se	7000903231000000000♠9.032310	7012930900000000000♠9.309×1012	β−	7005295000000000000♠2.950×105 y
313	234U	7000790830800000000♠7.908308	7012774700000000000♠7.747×1012	α, SF	7005245500000000000♠2.455×105 y
314	126Sn	7000875402600000000♠8.754026	7012725800000000000♠7.258×1012	β−	7005223000000000000♠2.230×105 y
315	81Kr	7000903051299999999♠9.030513	7012722700000000000♠7.227×1012	β+	7005229000000000000♠2.290×105 y
316	99Tc	7000895337900000000♠8.953379	7012666200000000000♠6.662×1012	β−	7005211100000000000♠2.111×105 y
317	186mRe	7000829595800000000♠8.295958	7012631200000000000♠6.312×1012	I	7005200000000000000♠2.000×105 y
318	233U	7000791287300000000♠7.912873	7012502400000000000♠5.024×1012	α, SF	7005159200000000000♠1.592×105 y
319	236Np	7000788751400000000♠7.887514	7012486000000000000♠4.860×1012	β+, β−, α	7005154000000000000♠1.540×105 y
320	41Ca	7000892834700000000♠8.928347	7012321900000000000♠3.219×1012	β+	7005102000000000000♠1.020×105 y
321	59Ni	7000910786300000000♠9.107863	7012239800000000000♠2.398×1012	β+	7004759900000000000♠7.599×104 y
322	230Th	7000793713600000000♠7.937136	7012237900000000000♠2.379×1012	α, SF	7004753900000000000♠7.539×104 y
323	137La	7000870710100000000♠8.707101	7012189300000000000♠1.893×1012	β+	7004599900000000000♠5.999×104 y
324	202Pb	7000819971400000000♠8.199714	7012165700000000000♠1.657×1012	β+, α	7004525100000000000♠5.251×104 y
325	231Pa	7000792662700000000♠7.926627	7012103400000000000♠1.034×1012	α, SF	7004327700000000000♠3.277×104 y
326	239Pu	7000786802200000000♠7.868022	7011760900000000000♠7.609×1011	α, SF	7004241100000000000♠2.411×104 y
327	94Nb	7000899009900000000♠8.990099	7011640600000000000♠6.406×1011	β−	7004202999999999999♠2.030×104 y
328	245Cm	7000782232900000000♠7.822329	7011268200000000000♠2.682×1011	α, SF	8499 y
329	250Cm	7000777937100000000♠7.779371	7011261900000000000♠2.619×1011	SF, α, β−	8299 y
330	243Am	7000783603500000000♠7.836035	7011232600000000000♠2.326×1011	α, SF	7371 y
331	229Th	7000794212700000000♠7.942127	7011231599999999999♠2.316×1011	α	7339 y
332	240Pu	7000786246500000000♠7.862465	7011206999999999999♠2.070×1011	α, SF	6560 y
333	14C	7000785562000000000♠7.855620	7011179900000000000♠1.799×1011	β−	5701 y
334	246Cm	7000781678100000000♠7.816781	7011150200000000000♠1.502×1011	α, SF	4760 y
335	163Ho	7000847859100000000♠8.478591	7011144200000000000♠1.442×1011	β+	4570 y
336	93Mo	7000900469300000000♠9.004693	7011126200000000000♠1.262×1011	β+	3999 y
337	226Ra	7000796659700000000♠7.966597	7010504900000000000♠5.049×1010	α	1600 y
338	247Bk	7000780618200000000♠7.806182	7010435500000000000♠4.355×1010	α	1380 y
339	166mHo	7000845127300000000♠8.451273	7010378700000000000♠3.787×1010	β−	1200 y
340	251Cf	7000777596900000000♠7.775969	7010283400000000000♠2.834×1010	α, SF	898 y
341	91Nb	7000902332700000000♠9.023327	7010214600000000000♠2.146×1010	β+	680 y
342	194Hg	7000823727100000000♠8.237271	7010140100000000000♠1.401×1010	β+	444 y
343	108mAg	7000888143900000000♠8.881439	7010138199999999999♠1.382×1010	β+, I	437.9 y
344	241Am	7000785167600000000♠7.851676	7010136400000000000♠1.364×1010	α, SF	432.2 y
345	249Cf	7000779130500000000♠7.791305	7010110800000000000♠1.108×1010	α, SF	351.1 y
346	39Ar	7000892368600000000♠8.923686	7009848900000000000♠8.489×109	β−	269 y
347	192mIr	7000825187500000000♠8.251875	7009760500000000000♠7.605×109	I	241 y
348	158Tb	7000851105500000000♠8.511055	7009568000000000000♠5.680×109	β+, β−	180 y
349	242mAm	7000784191300000000♠7.841913	7009445000000000000♠4.450×109	I, α, SF	141 y
350	32Si	7000882385599999999♠8.823856	7009416600000000000♠4.166×109	β−	132 y
351	209Po	7000814963300000000♠8.149633	7009395100000000000♠3.951×109	α, β+	125.2 y
352	63Ni	7000911121000000000♠9.111210	7009315900000000000♠3.159×109	β-	100.1 y
353	151Sm	7000856525100000000♠8.565251	7009284000000000000♠2.840×109	β-	90.0 y
354	238Pu	7000787735800000000♠7.877358	7009276800000000000♠2.768×109	α, SF	87.71 y
355	157Tb	7000852209600000000♠8.522096	7009224100000000000♠2.241×109	β+	71.02 y
356	148Gd	7000858670600000000♠8.586706	7009223700000000000♠2.237×109	α	70.89 y
357	232U	7000792214300000000♠7.922143	7009217400000000000♠2.174×109	α, SF	68.89 y
358	44Ti	7000892470200000000♠8.924702	7009189300000000000♠1.893×109	β+	59.99 y
359	193Pt	7000824996500000000♠8.249965	7009157800000000000♠1.578×109	β+	50.0 y
360	121mSn	7000880849900000000♠8.808499	7009138500000000000♠1.385×109	I, β-	43.89 y
361	150Eu	7000856997400000000♠8.569974	7009116400000000000♠1.164×109	β+	36.89 y
362	207Bi	7000816820899999999♠8.168209	7009103800000000000♠1.038×109	β+	32.89 y
363	42Ar	7000889092300000000♠8.890923	7009103800000000000♠1.038×109	β-	32.89 y
364	137Cs	7000870304700000000♠8.703047	7008947700000000000♠9.477×108	β-	30.03 y
365	243Cm	7000783600400000000♠7.836004	7008918300000000000♠9.183×108	α, β+, SF	29.1 y
366	90Sr	7000902623900000000♠9.026239	7008911999999999999♠9.120×108	β-	28.9 y
367	210Pb	7000814146200000000♠8.141462	7008700600000000000♠7.006×108	β-, α	22.2 y
368	227Ac	7000795744700000000♠7.957447	7008687100000000000♠6.871×108	β-, α	21.77 y
369	244Cm	7000783176300000000♠7.831763	7008571200000000000♠5.712×108	α, SF	18.1 y
370	145Pm	7000863183800000000♠8.631838	7008558600000000000♠5.586×108	β+, α	17.7 y
371	241Pu	7000785159000000000♠7.851590	7008451000000000000♠4.510×108	β-, α, SF	14.29 y
372	152Eu	7000855089700000000♠8.550897	7008426199999999999♠4.262×108	β+, β-	13.51 y
373	250Cf	7000778664000000000♠7.786640	7008412800000000000♠4.128×108	α, SF	13.08 y
374	3H	7000308799400000000♠3.087994	7008388800000000000♠3.888×108	β-	12.32 y
375	85Kr	7000902991900000000♠9.029919	7008338400000000000♠3.384×108	β-	10.72 y
376	133Ba	7000872962400000000♠8.729624	7008331900000000000♠3.319×108	β+	10.52 y
377	248Bk	7000779681100000000♠7.796811	> 7008284000000000000♠2.840×108	α	9.00 y
378	154Eu	7000853720000000000♠8.537200	7008271100000000000♠2.711×108	β-, β+	8.591 y
379	194Os	7000823850800000000♠8.238508	7008189300000000000♠1.893×108	β-	5.999 y
380	228Ra	7000794439000000000♠7.944390	7008181500000000000♠1.815×108	β-	5.752 y
381	146Pm	7000861557400000000♠8.615574	7008174500000000000♠1.745×108	β+, β-	5.53 y
382	60Co	7000909881100000000♠9.098811	7008166300000000000♠1.663×108	β-	5.27 y
383	155Eu	7000853471100000000♠8.534711	7008150000000000000♠1.500×108	β-	4.753 y
384	204Tl	7000819067100000000♠8.190671	7008119300000000000♠1.193×108	β-, β+	3.781 y
385	174Lu	7000839072600000000♠8.390726	7008104500000000000♠1.045×108	β+	3.312 y
386	101Rh	7000893675300000000♠8.936753	7008104099999999999♠1.041×108	β+	3.299 y
387	102mRh	7000892068000000000♠8.920680	7007915199999999999♠9.152×107	β+, I	2.9 y
388	208Po	7000815531500000000♠8.155315	7007914500000000000♠9.145×107	α, β+	2.898 y
389	236Pu	7000788953600000000♠7.889536	7007901900000000000♠9.019×107	α, SF	2.858 y
390	125Sb	7000877736700000000♠8.777367	7007870500000000000♠8.705×107	β-	2.759 y
391	55Fe	7000911640700000000♠9.116407	7007863700000000000♠8.637×107	β+	2.737 y
392	252Cf	7000776960500000000♠7.769605	7007834700000000000♠8.347×107	α, SF	2.645 y
393	147Pm	7000860906800000000♠8.609068	7007827900000000000♠8.279×107	β-	2.624 y
394	22Na	7000830689100000000♠8.306891	7007821299999999999♠8.213×107	β+	2.603 y
395	134Cs	7000871976800000000♠8.719768	7007651700000000000♠6.517×107	β-, β+	2.065 y
396	171Tm	7000841762000000000♠8.417620	7007605900000000000♠6.059×107	β-	1.92 y
397	228Th	7000795390600000000♠7.953906	7007603300000000000♠6.033×107	α	1.912 y
398	172Hf	7000839925200000000♠8.399252	7007590100000000000♠5.901×107	β+	1.87 y
399	179Ta	7000835270300000000♠8.352703	7007574300000000000♠5.743×107	β+	1.82 y
400	173Lu	7000840014700000000♠8.400147	7007432300000000000♠4.323×107	β+	1.37 y
401	252Es	7000776462100000000♠7.764621	7007407500000000000♠4.075×107	α, β+, β-	1.291 y
402	109Cd	7000888332700000000♠8.883327	7007398600000000000♠3.986×107	β+	1.263 y
403	235Np	7000789666900000000♠7.896669	7007342200000000000♠3.422×107	β+, α	1.084 y
404	106Ru	7000888568600000000♠8.885686	7007322800000000000♠3.228×107	β-	1.023 y
405	144Pm	7000863675100000000♠8.636751	7007313600000000000♠3.136×107	β+	363 d
406	145Sm	7000862759000000000♠8.627590	7007293800000000000♠2.938×107	β+	340 d
407	248Cf	7000780019800000000♠7.800198	7007288099999999999♠2.881×107	α, SF	333.4 d
408	249Bk	7000779080500000000♠7.790805	7007285100000000000♠2.851×107	β−, α, SF	330 d
409	49V	7000905003999999999♠9.050040	7007284300000000000♠2.843×107	β+	329.1 d
410	54Mn	7000910013099999999♠9.100131	7007269700000000000♠2.697×107	β+, β−	312.2 d
411	144Ce	7000862991800000000♠8.629918	7007246200000000000♠2.462×107	β−	285 d
412	254Es	7000774852400000000♠7.748524	7007238200000000000♠2.382×107	α, β−, SF, β+	275.7 d
413	57Co	7000911245400000000♠9.112454	7007234800000000000♠2.348×107	β+	271.8 d
414	68Ge	7000905632700000000♠9.056327	7007234100000000000♠2.341×107	β+	271 d
415	143Pm	7000865150900000000♠8.651509	7007229000000000000♠2.290×107	β+	265 d
416	110mAg	7000886535499999999♠8.865355	7007215800000000000♠2.158×107	β−, I	249.8 d
417	65Zn	7000908535200000000♠9.085352	7007210500000000000♠2.105×107	β+	243.6 d
418	153Gd	7000854773100000000♠8.547731	7007207700000000000♠2.077×107	β+	240.4 d
419	195Au	7000823835300000000♠8.238353	7007160800000000000♠1.608×107	β+	186.1 d
420	194mIr	7000823802500000000♠8.238025	7007147700000000000♠1.477×107	β−	170.9 d
421	184mRe	7000831067000000000♠8.310670	7007146000000000000♠1.460×107	I, β+	169 d
422	242Cm	7000784486000000000♠7.844860	7007140700000000000♠1.407×107	α, SF	162.8 d
423	45Ca	7000897826100000000♠8.978261	7007140500000000000♠1.405×107	β−	162.6 d
424	177mLu	7000836182900000000♠8.361829	7007138599999999999♠1.386×107	β−, I	160.4 d
425	121mTe	7000880074900000000♠8.800749	7007133100000000000♠1.331×107	I, β+	154.1 d
426	159Dy	7000850637800000000♠8.506378	7007124800000000000♠1.248×107	β+	144.4 d
427	210Po	7000814729500000000♠8.147295	7007119600000000000♠1.196×107	α	138.4 d
428	139Ce	7000869688100000000♠8.696881	7007118900000000000♠1.189×107	β+	137.6 d
429	123Sn	7000878531100000000♠8.785311	7007111600000000000♠1.116×107	β−	129.2 d
430	170Tm	7000842309599999999♠8.423096	7007111100000000000♠1.111×107	β−, β+	128.6 d
431	151Gd	7000856268500000000♠8.562685	7007107100000000000♠1.071×107	β+, α	124 d
432	181W	7000833792399999999♠8.337924	7007104700000000000♠1.047×107	β+	121.2 d
433	75Se	7000903358100000000♠9.033581	7007103500000000000♠1.035×107	β+	119.8 d
434	113Sn	7000885303500000000♠8.853035	7006994400000000000♠9.944×106	β+	115.1 d
435	182Ta	7000832645600000000♠8.326456	7006988700000000000♠9.887×106	β−	114.4 d
436	127mTe	7000876575899999999♠8.765759	7006941800000000000♠9.418×106	I	109 d
437	88Y	7000902927200000000♠9.029272	7006921200000000000♠9.212×106	β+	106.6 d
438	257Fm	7000772661900000000♠7.726619	7006868300000000000♠8.683×106	α, SF	100.5 d
439	185Os	7000830273000000000♠8.302730	7006808700000000000♠8.087×106	β+	93.6 d
440	168Tm	7000843631600000000♠8.436316	7006804400000000000♠8.044×106	β+, β−	93.1 d
441	149Eu	7000858439500000000♠8.584395	7006804400000000000♠8.044×106	β+	93.1 d
442	35S	7000889551000000000♠8.895510	7006756100000000000♠7.561×106	β−	87.51 d
443	83Rb	7000902403799999999♠9.024038	7006744800000000000♠7.448×106	β+	86.2 d
444	46Sc	7000897909100000000♠8.979091	7006723900000000000♠7.239×106	β−	83.78 d
445	88Zr	7000902158900000000♠9.021589	7006720600000000000♠7.206×106	β+	83.4 d
446	73As	7000904334100000000♠9.043341	7006693800000000000♠6.938×106	β+	80.3 d
447	56Co	7000907203100000000♠9.072031	7006667300000000000♠6.673×106	β+	77.23 d
448	185W	7000830586600000000♠8.305866	7006648900000000000♠6.489×106	β−	75.1 d
449	160Tb	7000849534600000000♠8.495346	7006624700000000000♠6.247×106	β−	72.3 d
450	58Co	7000910315300000000♠9.103153	7006612200000000000♠6.122×106	β+	70.86 d
451	183Re	7000832166100000000♠8.321661	7006604800000000000♠6.048×106	β+	70 d
452	175Hf	7000838266499999999♠8.382665	7006604800000000000♠6.048×106	β+	70 d
453	188W	7000827700300000000♠8.277003	7006602900000000000♠6.029×106	β−	69.78 d
454	85Sr	7000902548000000000♠9.025480	7006560200000000000♠5.602×106	β+	64.84 d
455	95Zr	7000897298900000000♠8.972989	7006553200000000000♠5.532×106	β−	64.03 d
456	95mTc	7000897635900000000♠8.976359	7006527000000000000♠5.270×106	β+, I	61 d
457	254Cf	7000775108700000000♠7.751087	7006522700000000000♠5.227×106	SF, α	60.5 d
458	124Sb	7000877794300000000♠8.777943	7006519400000000000♠5.194×106	β−	60.12 d
459	125I	7000878201900000000♠8.782019	7006513200000000000♠5.132×106	β+	59.4 d
460	91Y	7000902017400000000♠9.020174	7006505500000000000♠5.055×106	β−	58.51 d
461	148Eu	7000858688199999999♠8.586882	7006470900000000000♠4.709×106	β+, α	54.5 d
462	7Be	7000581847000000000♠5.818470	7006459800000000000♠4.598×106	β+	53.22 d
463	258Md	7000771594800000000♠7.715948	7006445000000000000♠4.450×106	α, SF	51.5 d
464	89Sr	7000903996899999999♠9.039969	7006436900000000000♠4.369×106	β−	50.57 d
465	114mIn	7000884660800000000♠8.846608	7006427800000000000♠4.278×106	I, β+	49.51 d
466	146Gd	7000859251199999999♠8.592512	7006417100000000000♠4.171×106	β+	48.28 d
467	203Hg	7000819580599999999♠8.195806	7006402600000000000♠4.026×106	β−	46.6 d
468	237Pu	7000788106000000000♠7.881060	7006390500000000000♠3.905×106	β+, α	45.2 d
469	115mCd	7000883575400000000♠8.835754	7006385000000000000♠3.850×106	β−	44.56 d
470	59Fe	7000909951600000000♠9.099516	7006384400000000000♠3.844×106	β−	44.49 d
471	181Hf	7000833327199999999♠8.333272	7006366200000000000♠3.662×106	β−	42.38 d
472	148mPm	7000858980000000000♠8.589800	7006356700000000000♠3.567×106	β−, I	41.28 d
473	105Ag	7000890054700000000♠8.900547	7006356700000000000♠3.567×106	β+	41.28 d
474	255Es	7000774156700000000♠7.741567	7006343900000000000♠3.439×106	β−, α, SF	39.8 d
475	103Ru	7000891850000000000♠8.918500	7006339200000000000♠3.392×106	β−	39.26 d
476	127Xe	7000876676800000000♠8.766768	7006314500000000000♠3.145×106	β+	36.4 d
477	95Nb	7000898482100000000♠8.984821	7006302300000000000♠3.023×106	β−	34.99 d
478	37Ar	7000890775200000000♠8.907752	7006302000000000000♠3.020×106	β+	34.95 d
479	129mTe	7000874495300000000♠8.744953	7006290300000000000♠2.903×106	I, β−	33.6 d
480	84Rb	7000902073200000000♠9.020732	7006286000000000000♠2.860×106	β+, β−	33.1 d
481	241Cm	7000784849200000000♠7.848492	7006283400000000000♠2.834×106	β+, α	32.8 d
482	141Ce	7000867728600000000♠8.677286	7006280900000000000♠2.809×106	β−	32.51 d
483	169Yb	7000842854600000000♠8.428546	7006276700000000000♠2.767×106	β+	32.03 d
484	260Md	7000769978900000000♠7.699789	7006274800000000000♠2.748×106	SF, α, β+, β−	31.81 d
485	51Cr	7000908012699999999♠9.080127	7006239300000000000♠2.393×106	β+	27.7 d
486	240Cm	7000785580500000000♠7.855805	7006233300000000000♠2.333×106	α, β+, SF	27 d
487	233Pa	7000791042600000000♠7.910426	7006233100000000000♠2.331×106	β−	26.98 d
488	82Sr	7000899825399999999♠8.998254	7006220800000000000♠2.208×106	β+	25.56 d
489	33P	7000886943400000000♠8.869434	7006218900000000000♠2.189×106	β−	25.34 d
490	234Th	7000789776300000000♠7.897763	7006208199999999999♠2.082×106	β−	24.1 d
491	147Eu	7000859887900000000♠8.598879	7006208199999999999♠2.082×106	β+, α	24.1 d
492	178W	7000835456300000000♠8.354563	7006186600000000000♠1.866×106	β+	21.6 d
493	230U	7000793387100000000♠7.933871	7006179700000000000♠1.797×106	α, SF	20.8 d
494	253Es	7000775901900000000♠7.759019	7006176900000000000♠1.769×106	α, SF	20.47 d
495	227Th	7000795764400000000♠7.957644	7006161400000000000♠1.614×106	α	18.68 d
496	86Rb	7000903350200000000♠9.033502	7006161100000000000♠1.611×106	β−, β+	18.65 d
497	253Cf	7000775788500000000♠7.757885	7006153900000000000♠1.539×106	β−, α	17.81 d
498	74As	7000902889500000000♠9.028895	7006153500000000000♠1.535×106	β+, β−	17.77 d
499	230Pa	7000793143600000000♠7.931436	7006150300000000000♠1.503×106	β+, β−, α	17.40 d
500	103Pd	7000892063800000000♠8.920638	7006146800000000000♠1.468×106	β+	16.99 d
501	99Rh	7000893571100000000♠8.935711	7006139100000000000♠1.391×106	β+	16.1 d
502	48V	7000899789000000000♠8.997890	7006138000000000000♠1.380×106	β+	15.97 d
503	191Os	7000826187000000000♠8.261870	7006133100000000000♠1.331×106	β−	15.41 d
504	205Bi	7000817406899999999♠8.174069	7006132300000000000♠1.323×106	β+	15.31 d
505	156Eu	7000852064200000000♠8.520642	7006131200000000000♠1.312×106	β−	15.19 d
506	225Ra	7000797357600000000♠7.973576	7006128700000000000♠1.287×106	β−	14.9 d
507	32P	7000883086499999999♠8.830865	7006123200000000000♠1.232×106	β−	14.26 d
508	143Pr	7000865225800000000♠8.652258	7006117200000000000♠1.172×106	β−	13.56 d
509	189Ir	7000827478299999999♠8.274783	7006114000000000000♠1.140×106	β+	13.19 d
510	136Cs	7000870617100000000♠8.706171	7006112700000000000♠1.127×106	β−	13.04 d
511	126I	7000876902600000000♠8.769026	7006111700000000000♠1.117×106	β+, β−	12.93 d
512	140Ba	7000866612000000000♠8.666120	7006110200000000000♠1.102×106	β−	12.75 d
513	126Sb	7000875704200000000♠8.757042	7006106700000000000♠1.067×106	β−	12.35 d
514	202Tl	7000819995600000000♠8.199956	7006105700000000000♠1.057×106	β+	12.23 d
515	190Ir	7000826475499999999♠8.264755	7006101800000000000♠1.018×106	β+	11.78 d
516	131Ba	7000873303700000000♠8.733037	7005993600000000000♠9.936×105	β+	11.5 d
517	223Ra	7000799404200000000♠7.994042	7005987600000000000♠9.876×105	α	11.43 d
518	71Ge	7000905594299999999♠9.055943	7005987600000000000♠9.876×105	β+	11.43 d
519	147Nd	7000860297300000000♠8.602973	7005948700000000000♠9.487×105	β−	10.98 d
520	246Pu	7000780549400000000♠7.805494	7005936600000000000♠9.366×105	β−	10.84 d
521	188Pt	7000827251399999999♠8.272514	7005881300000000000♠8.813×105	β+, α	10.2 d
522	225Ac	7000797515900000000♠7.975159	7005864000000000000♠8.640×105	α	10 d
523	131Cs	7000874354100000000♠8.743541	7005837100000000000♠8.371×105	β+
524	125Sn	7000875851499999999♠8.758515	7005832900000000000♠8.329×105	β−
525	169Er	7000843185199999999♠8.431852	7005811500000000000♠8.115×105	β−
526	149Gd	7000857557600000000♠8.575576	7005801800000000000♠8.018×105	β+, α
527	167Tm	7000844586600000000♠8.445866	7005799200000000000♠7.992×105	β+
528	206Po	7000815959000000000♠8.159590	7005760300000000000♠7.603×105	β+, α
529	72Se	7000901430000000000♠9.014300	7005725800000000000♠7.258×105	β+
530	106mAg	7000889063900000000♠8.890639	7005715400000000000♠7.154×105	β+
531	171Lu	7000840953200000000♠8.409532	7005711900000000000♠7.119×105	β+
532	131I	7000873884200000000♠8.738842	7005693000000000000♠6.930×105	β−
533	257Es	7000772346800000000♠7.723468	7005665300000000000♠6.653×105	β−, SF
534	111Ag	7000886611100000000♠8.866111	7005643700000000000♠6.437×105	β−
535	161Tb	7000849038300000000♠8.490383	7005596700000000000♠5.967×105	β−
536	237U	7000787980000000000♠7.879800	7005583200000000000♠5.832×105	β−
537	172Lu	7000840121700000000♠8.401217	7005578900000000000♠5.789×105	β+
538	132Cs	7000873159899999999♠8.731599	7005559900000000000♠5.599×105	β+, β−
539	206Bi	7000816855100000000♠8.168551	7005539400000000000♠5.394×105	β+
540	196Au	7000823020500000000♠8.230205	7005532800000000000♠5.328×105	β+, β−
541	56Ni	7000903389900000000♠9.033899	7005524900000000000♠5.249×105	β+
542	118Te	7000881472600000000♠8.814726	7005518400000000000♠5.184×105	β+
543	145Eu	7000860924500000000♠8.609245	7005512399999999999♠5.124×105	β+
544	120mSb	7000880819400000000♠8.808194	7005497700000000000♠4.977×105	β+
545	52Mn	7000904643100000000♠9.046431	7005483100000000000♠4.831×105	β+
546	156Tb	7000852066700000000♠8.520667	7005462200000000000♠4.622×105	β+
547	155Tb	7000853103100000000♠8.531031	7005459600000000000♠4.596×105	β+
548	133Xe	7000873030200000000♠8.730302	7005453000000000000♠4.530×105	β−
549	183Ta	7000831884700000000♠8.318847	7005440599999999999♠4.406×105	β−
550	245Bk	7000781902000000000♠7.819020	7005426800000000000♠4.268×105	β+, α
551	119mTe	7000880177300000000♠8.801773	7005406100000000000♠4.061×105	β+, I
552	146Eu	7000859956000000000♠8.599560	7005398300000000000♠3.983×105	β+
553	47Ca	7000897218100000000♠8.972181	7005391900000000000♠3.919×105	β−
554	234Np	7000790057100000000♠7.900571	7005380200000000000♠3.802×105	β+
555	96Tc	7000896525500000000♠8.965255	7005369800000000000♠3.698×105	β+
556	231U	7000792497700000000♠7.924977	7005362900000000000♠3.629×105	β+, α
557	175Yb	7000838390200000000♠8.383902	7005361600000000000♠3.616×105	β−
558	124I	7000877588400000000♠8.775884	7005360800000000000♠3.608×105	β+
559	127Sb	7000875400499999999♠8.754005	7005332600000000000♠3.326×105	β−
560	222Rn	7000799757300000000♠7.997573	7005330400000000000♠3.304×105	α
561	224Ra	7000798727700000000♠7.987277	7005313800000000000♠3.138×105	α
562	100Pd	7000892358700000000♠8.923587	7005313600000000000♠3.136×105	β+
563	166Dy	7000844837600000000♠8.448376	7005293800000000000♠2.938×105	β−
564	140Nd	7000867311300000000♠8.673113	7005291200000000000♠2.912×105	β+
565	47Sc	7000901456400000000♠9.014564	7005289400000000000♠2.894×105	β−
566	87Y	7000902556500000000♠9.025565	7005287300000000000♠2.873×105	β+
567	89Zr	7000902491200000000♠9.024912	7005282300000000000♠2.823×105	β+
568	67Ga	7000906953200000000♠9.069532	7005281900000000000♠2.819×105	β+
569	132Te	7000871664600000000♠8.716646	7005276800000000000♠2.768×105	β−
570	134Ce	7000870443200000000♠8.704432	7005273000000000000♠2.730×105	β+
571	199Au	7000821753400000000♠8.217534	7005271200000000000♠2.712×105	β−
572	201Tl	7000820656100000000♠8.206561	7005262500000000000♠2.625×105	β+
573	253Fm	7000775769100000000♠7.757691	7005259200000000000♠2.592×105	β+, α
574	191Pt	7000825822800000000♠8.258228	7005247300000000000♠2.473×105	β+
575	111In	7000886768799999999♠8.867688	7005242300000000000♠2.423×105	β+
576	97Ru	7000895908000000000♠8.959080	7005241100000000000♠2.411×105	β+
577	99Mo	7000893966900000000♠8.939669	7005237500000000000♠2.375×105	β−
578	122Sb	7000879534600000000♠8.795346	7005235300000000000♠2.353×105	β−, β+
579	71As	7000902758100000000♠9.027581	7005235000000000000♠2.350×105	β+
580	198Au	7000822073200000000♠8.220732	7005232900000000000♠2.329×105	β−
581	197Hg	7000822635800000000♠8.226358	7005230900000000000♠2.309×105	β+
582	90Y	7000903229400000000♠9.032294	7005230600000000000♠2.306×105	β−
583	182Re	7000832105299999999♠8.321053	7005230399999999999♠2.304×105	β+
584	172Tm	7000840493200000000♠8.404932	7005229000000000000♠2.290×105	β−
585	67Cu	7000907608600000000♠9.076086	7005222600000000000♠2.226×105	β−
586	44mSc	7000892462699999999♠8.924627	7005211000000000000♠2.110×105	I, β+
587	128Ba	7000873852300000000♠8.738523	7005210000000000000♠2.100×105	β+
588	77Br	7000902243099999999♠9.022431	7005205300000000000♠2.053×105	β+
589	166Yb	7000844234000000000♠8.442340	7005204100000000000♠2.041×105	β+
590	177Ta	7000836355300000000♠8.363553	7005203600000000000♠2.036×105	β+
591	239Np	7000786499900000000♠7.864999	7005203600000000000♠2.036×105	β−
592	153Tb	7000853747100000000♠8.537471	7005202199999999999♠2.022×105	β+
593	66Ni	7000907142299999999♠9.071423	7005196600000000000♠1.966×105	β−
594	247Pu	7000779197500000000♠7.791975	7005196100000000000♠1.961×105	β−
595	149Pm	7000858187100000000♠8.581871	7005191100000000000♠1.911×105	β−
596	203Pb	7000819343100000000♠8.193431	7005186900000000000♠1.869×105	β+
597	238Np	7000787193100000000♠7.871931	7005182900000000000♠1.829×105	β−
598	240Am	7000785669400000000♠7.856694	7005182900000000000♠1.829×105	β+, α
599	172Er	7000839975200000000♠8.399752	7005177500000000000♠1.775×105	β−
600	170Lu	7000840844500000000♠8.408445	7005173800000000000♠1.738×105	β+
601	252Cm	7000775743900000000♠7.757439	< 7005172800000000000♠1.728×105	β−
602	72Zn	7000901759100000000♠9.017591	7005167400000000000♠1.674×105	β−
603	153Sm	7000854561400000000♠8.545614	7005166600000000000♠1.666×105	β−
604	202Pt	7000818320900000000♠8.183209	7005158400000000000♠1.584×105	β−
605	48Sc	7000899832700000000♠8.998327	7005157200000000000♠1.572×105	β−
606	246Bk	7000781128700000000♠7.811287	7005155500000000000♠1.555×105	β+, α
607	195mHg	7000822939900000000♠8.229399	7005149800000000000♠1.498×105	I, β+
608	188Ir	7000827520000000000♠8.275200	7005149400000000000♠1.494×105	β+
609	140La	7000867362000000000♠8.673620	7005145000000000000♠1.450×105	β−
610	69Ge	7000904379999999999♠9.043800	7005140600000000000♠1.406×105	β+
611	77As	7000903128300000000♠9.031283	7005139800000000000♠1.398×105	β−
612	119Sb	7000882323500000000♠8.823235	7005137500000000000♠1.375×105	β+
613	147Gd	7000858400100000000♠8.584001	7005137000000000000♠1.370×105	β+
614	194Au	7000823762600000000♠8.237626	7005136900000000000♠1.369×105	β+
615	229Pa	7000794076900000000♠7.940769	7005129600000000000♠1.296×105	β+, α
616	246Cf	7000781079200000000♠7.810792	7005128499999999999♠1.285×105	α, β+, SF
617	57Ni	7000905522200000000♠9.055222	7005128200000000000♠1.282×105	β+
618	105Rh	7000890795600000000♠8.907956	7005127299999999999♠1.273×105	β−
619	82Br	7000901640699999999♠9.016407	7005127000000000000♠1.270×105	β−
620	79Kr	7000901364399999999♠9.013644	7005126099999999999♠1.261×105	β+
621	137mCe	7000869632700000000♠8.696327	7005123800000000000♠1.238×105	I, β+
622	169Lu	7000841497800000000♠8.414978	7005122600000000000♠1.226×105	β+
623	143Ce	7000864204100000000♠8.642041	7005118900000000000♠1.189×105	β−
624	251Es	7000777446700000000♠7.774467	7005118800000000000♠1.188×105	β+, α
625	83Sr	7000899656800000000♠8.996568	7005116700000000000♠1.167×105	β+
626	129Cs	7000874962200000000♠8.749622	7005115399999999999♠1.154×105	β+
627	268Db	7000763513300000000♠7.635133	7005115199999999999♠1.152×105	SF
628	232Pa	7000791637900000000♠7.916379	7005113199999999999♠1.132×105	β−, β+
629	193Os	7000824434800000000♠8.244348	7005108400000000000♠1.084×105	β−
630	165Tm	7000845275799999999♠8.452758	7005108200000000000♠1.082×105	β+
631	131mTe	7000872039200000000♠8.720392	7005108000000000000♠1.080×105	β−, I
632	226Ac	7000796376100000000♠7.963761	7005105700000000000♠1.057×105	β−, β+, α
633	160Er	7000848419000000000♠8.484190	7005102899999999999♠1.029×105	β+
634	151Pm	7000855738700000000♠8.557387	7005102200000000000♠1.022×105	β−
635	76As	7000902250500000000♠9.022505	7004945400000000000♠9.454×104	β−
636	200Tl	7000820656700000000♠8.206567	7004939600000000000♠9.396×104	β+
637	72As	7000901896600000000♠9.018966	7004936000000000000♠9.360×104	β+
638	231Th	7000792493200000000♠7.924932	7004918700000000000♠9.187×104	β−, α
639	252Fm	7000776649800000000♠7.766498	7004914000000000000♠9.140×104	α, SF
640	189Re	7000827226900000000♠8.272269	7004874800000000000♠8.748×104	β−	1.01 d

半衰期低於一日但超過1小時

no	核素	能量	半衰期	衰變方式
641	187W	7000828472200000000♠8.284722	7004853900000000000♠8.539×104	β−
642	173Hf	7000839161700000000♠8.391617	7004849600000000000♠8.496×104	β+
643	96Nb	7000896303600000000♠8.963036	7004840600000000000♠8.406×104	β−
644	154mTb	7000852691200000000♠8.526912	7004817200000000000♠8.172×104	β+, I
645	43K	7000892232699999999♠8.922327	7004802800000000000♠8.028×104	β−
646	182Os	7000831643200000000♠8.316432	7004795600000000000♠7.956×104	β+
647	228Pa	7000794446800000000♠7.944468	7004792000000000000♠7.920×104	β+, α
648	48Cr	7000896339000000000♠8.963390	7004776200000000000♠7.762×104	β+
649	200Pb	7000820254199999999♠8.202542	7004774000000000000♠7.740×104	β+
650	112Pd	7000884218500000000♠8.842185	7004757100000000000♠7.571×104	β−
651	28Mg	7000860770600000000♠8.607706	7004752900000000000♠7.529×104	β−
652	100Rh	7000892716700000000♠8.927167	7004748800000000000♠7.488×104	β+
653	133I	7000871709400000000♠8.717094	7004748800000000000♠7.488×104	β−
654	122Xe	7000877095900000000♠8.770959	7004723600000000000♠7.236×104	β+
655	255Fm	7000774270400000000♠7.742704	7004722500000000000♠7.225×104	α, SF
656	181Re	7000832829400000000♠8.328294	7004716400000000000♠7.164×104	β+
657	197Pt	7000822575600000000♠8.225756	7004716100000000000♠7.161×104	β−
658	135La	7000871317900000000♠8.713179	7004702000000000000♠7.020×104	β+
659	142Pr	7000866141700000000♠8.661417	7004688300000000000♠6.883×104	β−, β+
660	200mAu	7000820287700000000♠8.202877	7004673200000000000♠6.732×104	β−, I
661	159Gd	7000850257600000000♠8.502576	7004665200000000000♠6.652×104	β−
662	135Ce	7000869817900000000♠8.698179	7004637200000000000♠6.372×104	β+
663	193Au	7000824435300000000♠8.244353	7004635400000000000♠6.354×104	β+
664	151Tb	7000854569200000000♠8.545692	7004633900000000000♠6.339×104	β+, α
665	55Co	7000905364700000000♠9.053647	7004631100000000000♠6.311×104	β+
666	152Tb	7000853659100000000♠8.536591	7004630000000000000♠6.300×104	β+, α
667	188Re	7000827886000000000♠8.278860	7004612100000000000♠6.121×104	β−
668	125Xe	7000876886400000000♠8.768864	7004608399999999999♠6.084×104	β+
669	97Zr	7000892645100000000♠8.926451	7004602799999999999♠6.028×104	β−
670	186Ir	7000828193500000000♠8.281935	7004599000000000000♠5.990×104	β+
671	86Zr	7000897597900000000♠8.975979	7004594000000000000♠5.940×104	β+
672	76Br	7000899618300000000♠8.996183	7004583200000000000♠5.832×104	β+
673	170Hf	7000840221000000000♠8.402210	7004576400000000000♠5.764×104	β+
674	157Eu	7000851379200000000♠8.513792	7004546500000000000♠5.465×104	β−
675	24Na	7000842208200000000♠8.422082	7004538200000000000♠5.382×104	β−
676	76Kr	7000897940600000000♠8.979406	7004532800000000000♠5.328×104	β+
677	86Y	7000899323399999999♠8.993234	7004530600000000000♠5.306×104	β+
678	211Rn	7000811282500000000♠8.112825	7004525600000000000♠5.256×104	β+, α
679	90Nb	7000898972700000000♠8.989727	7004525600000000000♠5.256×104	β+
680	185Ir	7000828938200000000♠8.289382	7004518400000000000♠5.184×104	β+
681	240U	7000785168200000000♠7.851682	7004507599999999999♠5.076×104	β−
682	72Ga	7000902395800000000♠9.023958	7004507400000000000♠5.074×104	β−
683	69mZn	7000905653600000000♠9.056536	7004495400000000000♠4.954×104	I, β−
684	109Pd	7000887506100000000♠8.875061	7004493200000000000♠4.932×104	β−
685	123I	7000878631100000000♠8.786311	7004476000000000000♠4.760×104	β+
686	265Rf	7000766113900000000♠7.661139	≈ 7004468000000000000♠4.680×104	α
687	183Os	7000830990700000000♠8.309907	7004468000000000000♠4.680×104	β+
688	64Cu	7000909358100000000♠9.093581	7004457200000000000♠4.572×104	β+, β−
689	200Pt	7000820434200000000♠8.204342	7004450000000000000♠4.500×104	β−
690	130I	7000874003500000000♠8.740035	7004445000000000000♠4.450×104	β−
691	42K	7000890517500000000♠8.905175	7004443600000000000♠4.436×104	β−
692	171Hf	7000839547999999999♠8.395480	7004435600000000000♠4.356×104	β+
693	239Am	7000786466600000000♠7.864666	7004428400000000000♠4.284×104	β+, α
694	193mHg	7000823148300000000♠8.231483	7004424800000000000♠4.248×104	β+, I
695	203Bi	7000817743600000000♠8.177436	7004423400000000000♠4.234×104	β+
696	77Ge	7000899618500000000♠8.996185	7004406799999999999♠4.068×104	β−
697	204Bi	7000817265100000000♠8.172651	7004403900000000000♠4.039×104	β+
698	266Lr		7004396000000000000♠3.960×104	SF
698	189Pt	7000826435900000000♠8.264359	7004391300000000000♠3.913×104	β+
699	212Pb	7000810692800000000♠8.106928	7004383000000000000♠3.830×104	β−
700	175Ta	7000837081300000000♠8.370813	7004378000000000000♠3.780×104	β+
701	245Pu	7000781375200000000♠7.813752	7004378000000000000♠3.780×104	β−
702	187Ir	7000828371300000000♠8.283713	7004378000000000000♠3.780×104	β+
703	165Er	7000846240600000000♠8.462406	7004373000000000000♠3.730×104	β+
704	93Y	7000897695100000000♠8.976951	7004366500000000000♠3.665×104	β−
705	244Am	7000782591400000000♠7.825914	7004363600000000000♠3.636×104	β−
706	266Rf	7000765817000000000♠7.658170	≈ 7004360000000000000♠3.600×104	α, SF
709	155Dy	7000851752100000000♠8.517521	7004356400000000000♠3.564×104	β+
710	91Sr	7000899050300000000♠8.990503	7004346700000000000♠3.467×104	β−
711	66Ga	7000903684299999999♠9.036843	7004341600000000000♠3.416×104	β+
712	156Sm	7000851600700000000♠8.516007	7004338400000000000♠3.384×104	β−
713	201Pb	7000819698900000000♠8.196989	7004335900000000000♠3.359×104	β+
714	62Zn	7000905795700000000♠9.057957	7004330700000000000♠3.307×104	β+
715	135Xe	7000871145300000000♠8.711453	7004329000000000000♠3.290×104	β−
716	128Sb	7000873234300000000♠8.732343	7004324400000000000♠3.244×104	β−
717	234Pu	7000789889200000000♠7.898892	7004316800000000000♠3.168×104	β+, α
718	184Ta	7000830415400000000♠8.304154	7004313200000000000♠3.132×104	β−
719	250Es	7000777840700000000♠7.778407	7004309600000000000♠3.096×104	β+, α
720	101Pd	7000891714900000000♠8.917149	7004304900000000000♠3.049×104	β+
721	52Fe	7000900078899999999♠9.000789	7004297900000000000♠2.979×104	β+
722	173Tm	7000839652400000000♠8.396524	7004296600000000000♠2.966×104	β−
723	157Dy	7000851354400000000♠8.513544	7004293000000000000♠2.930×104	β+
724	210At	7000812833700000000♠8.128337	7004291600000000000♠2.916×104	β+, α
725	176Ta	7000836320199999999♠8.363202	7004291200000000000♠2.912×104	β+
726	166Tm	7000844418300000000♠8.444183	7004277199999999999♠2.772×104	β+
727	256mEs	7000773074200000000♠7.730742	7004273600000000000♠2.736×104	β−
728	171Er	7000840890100000000♠8.408901	7004270600000000000♠2.706×104	β−
729	199Tl	7000821233299999999♠8.212333	7004267100000000000♠2.671×104	β+
730	211At	7000812652700000000♠8.126527	7004259700000000000♠2.597×104	β+, α
731	73Se	7000900582099999999♠9.005821	7004257400000000000♠2.574×104	β+
732	234Pa	7000789893000000000♠7.898930	7004241200000000000♠2.412×104	β−
733	135I	7000869199399999999♠8.691994	7004236500000000000♠2.365×104	β−
734	107Cd	7000888427100000000♠8.884271	7004234000000000000♠2.340×104	β+
735	82mRb	7000899960800000000♠8.999608	7004233000000000000♠2.330×104	β+, I
736	153Dy	7000852328800000000♠8.523288	7004230400000000000♠2.304×104	β+, α
737	127Cs	7000875038299999999♠8.750383	7004225000000000000♠2.250×104	β+
738	228Ac	7000794459100000000♠7.944591	7004221400000000000♠2.214×104	β−
740	145Pr	7000862051400000000♠8.620514	7004215400000000000♠2.154×104	β−
741	207Po	7000815415800000000♠8.154158	7004208800000000000♠2.088×104	β+, α
742	90Mo	7000896207199999999♠8.962072	7004200199999999999♠2.002×104	β+
743	257Md	7000772504000000000♠7.725040	7004198700000000000♠1.987×104	β+, α, SF
744	111mPd	7000884458899999999♠8.844589	7004198000000000000♠1.980×104	I, β−
745	139mNd	7000865952899999999♠8.659529	7004198000000000000♠1.980×104	β+, I
746	209At	7000813295400000000♠8.132954	7004194800000000000♠1.948×104	β+, α
747	113Ag	7000884153100000000♠8.841531	7004193300000000000♠1.933×104	β−
748	198Tl	7000821016599999999♠8.210166	7004190800000000000♠1.908×104	β+
749	251Fm	7000776859000000000♠7.768590	7004190800000000000♠1.908×104	β+, α
750	138Nd	7000866566100000000♠8.665661	7004181400000000000♠1.814×104	β+
751	160mHo	7000848587700000000♠8.485877	7004180700000000000♠1.807×104	I, β+
752	118mSb	7000881496300000000♠8.814963	7004180000000000000♠1.800×104	β+
754	243Pu	7000783364800000000♠7.833648	7004178400000000000♠1.784×104	β−
755	192Au	7000824203600000000♠8.242036	7004177800000000000♠1.778×104	β+
756	110In	7000885746400000000♠8.857464	7004176400000000000♠1.764×104	β+
757	133mCe	7000869077100000000♠8.690771	7004176400000000000♠1.764×104	β+
758	94Tc	7000896658300000000♠8.966583	7004175800000000000♠1.758×104	β+
759	85mY	7000898687999999999♠8.986880	7004175000000000000♠1.750×104	β+, I
760	73Ga	7000902611200000000♠9.026112	7004175000000000000♠1.750×104	β−
761	192Hg	7000823805100000000♠8.238051	7004174600000000000♠1.746×104	β+
762	132La	7000870572100000000♠8.705721	7004172800000000000♠1.728×104	β+
763	179Lu	7000834542800000000♠8.345428	7004165200000000000♠1.652×104	β−
764	81Rb	7000900287100000000♠9.002871	7004164500000000000♠1.645×104	β+
765	243Bk	7000782980100000000♠7.829801	7004162000000000000♠1.620×104	β+, α
766	105Ru	7000888968900000000♠8.889689	7004159800000000000♠1.598×104	β−
767	80mBr	7000901887200000000♠9.018872	7004159100000000000♠1.591×104	I
768	139Pr	7000868156500000000♠8.681565	7004158800000000000♠1.588×104	β+
769	129Sb	7000872735800000000♠8.727358	7004158400000000000♠1.584×104	β−
770	244Bk	7000782249100000000♠7.822491	7004156600000000000♠1.566×104	β+, α
771	109In	7000886480500000000♠8.864805	7004151200000000000♠1.512×104	β+
772	184Hf	7000829687100000000♠8.296871	7004148300000000000♠1.483×104	β−
773	149Tb	7000855116600000000♠8.551166	7004148200000000000♠1.482×104	β+, α
774	110Sn	7000885172700000000♠8.851727	7004148000000000000♠1.480×104	β+
775	262Lr	7000768155600000000♠7.681556	7004144000000000000♠1.440×104	SF, β+, α
776	71mZn	7000901737000000000♠9.017370	7004142600000000000♠1.426×104	β−, I
777	141La	7000865954000000000♠8.659540	7004141100000000000♠1.411×104	β−
778	133La	7000871410900000000♠8.714109	7004140800000000000♠1.408×104	β+
779	43Sc	7000891290700000000♠8.912907	7004140100000000000♠1.401×104	β+
780	195mIr	7000823332600000000♠8.233326	7004136800000000000♠1.368×104	β−, I
781	92Y	7000899320799999999♠8.993208	7004127400000000000♠1.274×104	β−
782	204Po	7000816119999999999♠8.161200	7004127099999999999♠1.271×104	β+, α
783	132Ce	7000869613100000000♠8.696131	7004126400000000000♠1.264×104	β+
784	150Tb	7000854539400000000♠8.545394	7004125299999999999♠1.253×104	β+, α
785	117mCd	7000880884000000000♠8.808840	7004121000000000000♠1.210×104	β−
786	61Cu	7000908745200000000♠9.087452	7004120000000000000♠1.200×104	β+
787	209Pb	7000815560700000000♠8.155607	7004117100000000000♠1.171×104	β−
788	254Fm	7000775280800000000♠7.752808	7004116600000000000♠1.166×104	α, SF
789	250Bk	7000777952300000000♠7.779523	7004115600000000000♠1.156×104	β−
790	161Er	7000847635200000000♠8.476352	7004115600000000000♠1.156×104	β+
791	190mRe	7000825743300000000♠8.257433	7004115200000000000♠1.152×104	β−, I
792	191Au	7000824834300000000♠8.248343	7004114500000000000♠1.145×104	β+
793	173Ta	7000837421800000000♠8.374218	7004112999999999999♠1.130×104	β+
794	112Ag	7000884475600000000♠8.844756	7004112700000000000♠1.127×104	β−
795	247Cf	7000780356600000000♠7.803566	7004112000000000000♠1.120×104	β+, α
796	184Ir	7000828659900000000♠8.286599	7004111200000000000♠1.112×104	β+
797	45Ti	7000893812100000000♠8.938121	7004110900000000000♠1.109×104	β+
798	167Ho	7000844430400000000♠8.444304	7004108100000000000♠1.081×104	β−
799	269Db	7000763006400000000♠7.630064	7004108000000000000♠1.080×104	α, SF
800	239Cm	7000785714300000000♠7.857143	7004104400000000000♠1.044×104	β+, α
801	197Tl	7000821519000000000♠8.215190	7004102200000000000♠1.022×104	β+
802	88Kr	7000897691800000000♠8.976918	7004102200000000000♠1.022×104	β−
803	38S	7000877819600000000♠8.778196	7004102200000000000♠1.022×104	β−
804	117Sb	7000882897700000000♠8.828977	7004100800000000000♠1.008×104	β+
805	224Ac	7000798099300000000♠7.980993	7004100099999999999♠1.001×104	β+, α, β−
806	93Tc	7000897027400000000♠8.970274	7003990000000000000♠9.900×103	β+
807	150Pm	7000856201400000000♠8.562014	7003964800000000000♠9.648×103	β−
808	92Sr	7000897206699999999♠8.972067	7003957600000000000♠9.576×103	β−
809	256Fm	7000773739800000000♠7.737398	7003945600000000000♠9.456×103	SF, α
810	31Si	7000881161799999999♠8.811618	7003943800000000000♠9.438×103	β−
811	56Mn	7000908757200000000♠9.087572	7003928400000000000♠9.284×103	β−
812	65Ni	7000907326700000000♠9.073267	7003906200000000000♠9.062×103	β−
813	176W	7000835905500000000♠8.359055	7003900000000000000♠9.000×103	β+
814	116Te	7000880641400000000♠8.806414	7003896400000000000♠8.964×103	β+
815	141Nd	7000866847600000000♠8.668476	7003896400000000000♠8.964×103	β+
816	161Ho	7000848873700000000♠8.488737	7003892800000000000♠8.928×103	β+
817	210Rn	7000811703200000000♠8.117032	7003864000000000000♠8.640×103	α, β+
818	198Pb	7000820289300000000♠8.202893	7003864000000000000♠8.640×103	β+
819	238Cm	7000786376400000000♠7.863764	7003864000000000000♠8.640×103	β+, α
820	83Br	7000902324300000000♠9.023243	7003864000000000000♠8.640×103	β−
821	152Dy	7000853267000000000♠8.532670	7003856800000000000♠8.568×103	β+, α
822	178mTa	7000835507499999999♠8.355075	7003849600000000000♠8.496×103	β+
823	187Pt	7000826763800000000♠8.267638	7003846000000000000♠8.460×103	β+
824	165Dy	7000845689100000000♠8.456891	7003840200000000000♠8.402×103	β−
825	267Rf	7000764735700000000♠7.647357	7003828000000000000♠8.280×103	SF
826	132I	7000872057000000000♠8.720570	7003826200000000000♠8.262×103	β−
827	158Er	7000848461900000000♠8.484619	7003824400000000000♠8.244×103	β+
828	66Ge	7000900496399999999♠9.004964	7003813599999999999♠8.136×103	β+
829	129Ba	7000873074600000000♠8.730746	7003802800000000000♠8.028×103	β+
830	177W	7000835211800000000♠8.352118	7003792000000000000♠7.920×103	β+
831	106mRh	7000888476099999999♠8.884761	7003786000000000000♠7.860×103	β−
832	138mPr	7000867108799999999♠8.671088	7003763200000000000♠7.632×103	β+
833	121I	7000878444300000000♠8.784443	7003763200000000000♠7.632×103	β+
834	127Sn	7000872880000000000♠8.728800	7003756000000000000♠7.560×103	β−
835	123Xe	7000876440900000000♠8.764409	7003748800000000000♠7.488×103	β+
836	186Pt	7000827489699999999♠8.274897	7003748800000000000♠7.488×103	β+, α
837	245Am	7000781867400000000♠7.818674	7003738000000000000♠7.380×103	β−
838	89Nb	7000897750699999999♠8.977507	7003730800000000000♠7.308×103	β+
839	117mIn	7000882884900000000♠8.828849	7003697200000000000♠6.972×103	β−, I
840	177Yb	7000835940100000000♠8.359401	7003688000000000000♠6.880×103	β−
841	196Tl	7000821161800000000♠8.211618	7003662400000000000♠6.624×103	β+
842	18F	7000802278900000000♠8.022789	7003658500000000000♠6.585×103	β+
843	41Ar	7000887785200000000♠8.877852	7003657700000000000♠6.577×103	β−
844	163Tm	7000845620500000000♠8.456205	7003651600000000000♠6.516×103	β+
845	239Pa	7000784814800000000♠7.848148	7003648000000000000♠6.480×103	β−
846	201Bi	7000817787500000000♠8.177875	7003648000000000000♠6.480×103	β+, α
847	207At	7000813530300000000♠8.135303	7003648000000000000♠6.480×103	β+, α
848	224Rn	7000797132700000000♠7.971327	7003642000000000000♠6.420×103	β−
849	80Sr	7000895017700000000♠8.950177	7003637800000000000♠6.378×103	β+
850	181Os	7000831193500000000♠8.311935	7003630000000000000♠6.300×103	β+
851	205Po	7000815673700000000♠8.156737	7003626400000000000♠6.264×103	β+, α
852	149Nd	7000857052900000000♠8.570529	7003622100000000000♠6.221×103	β−
853	202Bi	7000817396600000000♠8.173966	7003619200000000000♠6.192×103	β+, α
854	249Es	7000778546400000000♠7.785464	7003613200000000000♠6.132×103	β+, α
855	147Tb	7000855263400000000♠8.552634	7003612000000000000♠6.120×103	β+
856	87Zr	7000898337300000000♠8.983373	7003604800000000000♠6.048×103	β+
857	126Ba	7000872743900000000♠8.727439	7003600000000000000♠6.000×103	β+
858	61Co	7000910244900000000♠9.102449	7003594000000000000♠5.940×103	β−
859	95Ru	7000894974900000000♠8.949749	7003591500000000000♠5.915×103	β+
860	238Am	7000786788200000000♠7.867882	7003588000000000000♠5.880×103	β+, α
861	208At	7000813137600000000♠8.131376	7003586800000000000♠5.868×103	β+, α
862	75Br	7000899318100000000♠8.993181	7003580200000000000♠5.802×103	β+
863	259Md	7000770986000000000♠7.709860	7003576000000000000♠5.760×103	SF, α
864	230Ra	7000792124900000000♠7.921249	7003558000000000000♠5.580×103	β−
865	142La	7000863495400000000♠8.634954	7003546600000000000♠5.466×103	β−
866	78As	7000900487900000000♠9.004879	7003544200000000000♠5.442×103	β−
867	199Pb	7000819811100000000♠8.198111	7003540000000000000♠5.400×103	β+
870	78Ge	7000899263500000000♠8.992635	7003528000000000000♠5.280×103	β−
871	255Cf	7000773873900000000♠7.738739	7003510000000000000♠5.100×103	β−
872	196mIr	7000821944000000000♠8.219440	7003504000000000000♠5.040×103	β−, I
873	139Ba	7000868221700000000♠8.682217	7003498400000000000♠4.984×103	β−
874	75Ge	7000902941300000000♠9.029413	7003496700000000000♠4.967×103	β−
875	120I	7000876957700000000♠8.769577	7003489600000000000♠4.896×103	β+
876	256Md	7000772906200000000♠7.729062	7003462000000000000♠4.620×103	β+, α, SF
877	137Pr	7000867845900000000♠8.678459	7003460800000000000♠4.608×103	β+
878	87Kr	7000899902200000000♠8.999022	7003457800000000000♠4.578×103	β−
879	164Yb	7000844341900000000♠8.443419	7003454800000000000♠4.548×103	β+
880	163Er	7000847116800000000♠8.471168	7003450000000000000♠4.500×103	β+
881	77Kr	7000898261800000000♠8.982618	7003446400000000000♠4.464×103	β+
882	178Yb	7000835052999999999♠8.350530	7003444000000000000♠4.440×103	β−
883	267Db	7000764436100000000♠7.644361	7003438000000000000♠4.380×103	SF
884	237Am	7000787483000000000♠7.874830	7003438000000000000♠4.380×103	β+, α
885	142Sm	7000862761600000000♠8.627616	7003434900000000000♠4.349×103	β+
886	97Nb	7000895386400000000♠8.953864	7003432600000000000♠4.326×103	β−
887	185Pt	7000826959800000000♠8.269598	7003425400000000000♠4.254×103	β+
888	195Tl	7000821571200000000♠8.215712	7003417600000000000♠4.176×103	β+
889	104Ag	7000888970200000000♠8.889702	7003415200000000000♠4.152×103	β+
890	174Ta	7000836868400000000♠8.368684	7003410400000000000♠4.104×103	β+
891	68Ga	7000905788800000000♠9.057888	7003406299999999999♠4.063×103	β+
892	162mHo	7000847837099999999♠8.478371	7003401999999999999♠4.020×103	I, β+
893	103Ag	7000889454100000000♠8.894541	7003394200000000000♠3.942×103	β+
894	249Cm	7000778719100000000♠7.787191	7003384900000000000♠3.849×103	β−
895	183Hf	7000830788500000000♠8.307885	7003384100000000000♠3.841×103	β−
896	229Ac	7000793704800000000♠7.937048	7003376200000000000♠3.762×103	β−
897	117Te	7000879865200000000♠8.798652	7003372000000000000♠3.720×103	β+
898	240Np	7000785334800000000♠7.853348	7003371400000000000♠3.714×103	β−
899	212Bi	7000810961700000000♠8.109617	7003363300000000000♠3.633×103	β−, α
900	116mSb	7000881648300000000♠8.816483	7003361800000000000♠3.618×103	β+
901	148Tb	7000854794899999999♠8.547949	7003360000000000000♠3.600×103	β+

半衰期之一小時以下的天然同位素

核素	半衰期	衰變方式
211Pb	36.1 min	β−
214Pb	26.8 min	β−
223Fr	22 min	β−, α
214Bi	19.9 min	β−, α
206Hg	8.15 min	β−
215Bi	7.6 min	β−
221Fr	4.8 min	α
207Tl	4.77 min	β−
206Tl	4.2 min	β−
218Po	3.10 min	α, β−
208Tl	3.053 min	β−
211Bi	2.14 min	α, β−
210Tl	1.3 min	β−
234mPa	1.17 min	β−, I
219At	56 s	α, β−
220Rn	55.6 s	α
219Rn	3.96 s	α
218At	1.5 s	α, β−
211Po	0.516 s	α
216Po	0.145 s	α
218Rn	35 ms	α
215Po	1.781 ms	α
214Po	164.3 µs	α
215At	0.1 ms	α
212Po	299 ns	α

參見

• 原始核素
• 核素圖
• 同位素地球化學
• 放射性同位素
• 單核素元素
• 單一同位素元素
• 穩定同位素比
• 依同位素穩定性排列的元素列表
• 依半衰期排列的放射性核素列表

參考文獻

Almost all data are taken from reference. For more recent updates, see reference. These sources do not indicate whether certain heavy isotopes starting from Lr, Rf, Db... (etc.) were produced, observed, or only predicted from estimated data.

• Experimental atomic mass data compiled Nov. 2003 （頁面存檔備份，存於互聯網檔案館）
• J. Magill, G. Pfennig, J. Galy "Karlsruher Nuclide Chart", 7th edition 2006, revised printing Nov. 2007 （頁面存檔備份，存於互聯網檔案館）
• The LIVEChart of Nuclides – IAEA with dynamic half-life filtering
• Nice Overview picture for energy of nuclides
• National Isotope Development Center （頁面存檔備份，存於互聯網檔案館） Reference information on isotopes, and coordination and management of isotope production, availability, and distribution
• Isotope Development & Production for Research and Applications (IDPRA) U.S. Department of Energy program for isotope production and production research and development