锘的同位素
圖表

| 符號 | Z> 激發能量 | N> 激發能量 | 同位素質量（u） > 激發能量 | 半衰期 | 衰變方式 | 衰變產物 | 原子核 自旋 |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 248No | 102 | 146 | 248.08655(24)# | <2 µs |  |  | 0+ |
| 249No | 102 | 147 | 249.0878(3)# | 57(12) s [54(+15−10) s] |  |  | 5/2+# |
| 250No | 102 | 148 | 250.08756(22)# | 5.7(8) s | SF (99.95%) | (various) | 0+ |
| 250No | 102 | 148 | 250.08756(22)# | 5.7(8) s | α (.05%) | 246Fm | 0+ |
| 250No | 102 | 148 | 250.08756(22)# | 5.7(8) s | β+ (2.5×10−4%) | 250Md | 0+ |
| 251No | 102 | 149 | 251.08894(12)# | 0.78(2) s | α (89%) | 247Fm | 7/2+# |
| 251No | 102 | 149 | 251.08894(12)# | 0.78(2) s | SF (10%) | (various) | 7/2+# |
| 251No | 102 | 149 | 251.08894(12)# | 0.78(2) s | β+ (1%) | 251Md | 7/2+# |
| 251mNo | 110(180)# keV | 110(180)# keV | 110(180)# keV | 1.7(10) s |  |  | 9/2−# |
| 252No | 102 | 150 | 252.088967(10) | 2.27(14) s | α (73.09%) | 248Fm | 0+ |
| 252No | 102 | 150 | 252.088967(10) | 2.27(14) s | SF (26.9%) | (various) | 0+ |
| 252No | 102 | 150 | 252.088967(10) | 2.27(14) s | β+ (1%) | 252Md  | 0+ |
| 253No | 102 | 151 | 253.090564(7) | 1.62(15) min | α (80%) | 249Fm | (9/2−)# |
| 253No | 102 | 151 | 253.090564(7) | 1.62(15) min | β+ (20%) | 253Md | (9/2−)# |
| 253No | 102 | 151 | 253.090564(7) | 1.62(15) min | SF (10−3%) | (various) | (9/2−)# |
| 253mNo | 129(19) keV | 129(19) keV | 129(19) keV | 31 s |  |  | 5/2+# |
| 254No | 102 | 152 | 254.090956(11) | 51(10) s | α (89.3%) | 250Fm | 0+ |
| 254No | 102 | 152 | 254.090956(11) | 51(10) s | β+ (10%) | 254Md | 0+ |
| 254No | 102 | 152 | 254.090956(11) | 51(10) s | SF (.31%) | (various) | 0+ |
| 254mNo | 500(100)# keV | 500(100)# keV | 500(100)# keV | 0.28(4) s | IT (80%) | 254No | 0+ |
| 254mNo | 500(100)# keV | 500(100)# keV | 500(100)# keV | 0.28(4) s | α (20%) | 250Fm | 0+ |
| 255No | 102 | 153 | 255.093191(16) | 3.1(2) min | α (61.4%) | 251Fm | (1/2+) |
| 255No | 102 | 153 | 255.093191(16) | 3.1(2) min | β+ (38.6%) | 255Md | (1/2+) |
| 256No | 102 | 154 | 256.094283(8) | 2.91(5) s | α (99.44%) | 252Fm | 0+ |
| 256No | 102 | 154 | 256.094283(8) | 2.91(5) s | SF (.55%) | (various) | 0+ |
| 256No | 102 | 154 | 256.094283(8) | 2.91(5) s | ε (.01%) | 256Md | 0+ |
| 257No | 102 | 155 | 257.096888(7) | 25(2) s | α (99%) | 253Fm | (7/2+) |
| 257No | 102 | 155 | 257.096888(7) | 25(2) s | β+ (1%) | 257Md | (7/2+) |
| 258No | 102 | 156 | 258.09821(11)# | 1.2(2) ms | SF (99.99%) | (various) | 0+ |
| 258No | 102 | 156 | 258.09821(11)# | 1.2(2) ms | α (.01%) | 254Fm | 0+ |
| 258No | 102 | 156 | 258.09821(11)# | 1.2(2) ms | β+β+ （不常見） | 258Fm | 0+ |
| 259No | 102 | 157 | 259.10103(11)# | 58(5) min | α (75%) | 255Fm | (9/2+)# |
| 259No | 102 | 157 | 259.10103(11)# | 58(5) min | ε (25%) | 259Md | (9/2+)# |
| 259No | 102 | 157 | 259.10103(11)# | 58(5) min | SF (10%) | (various) | (9/2+)# |
| 260No | 102 | 158 | 260.10264(22)# | 106(8) ms | SF | (various) | 0+ |
| 262No | 102 | 160 | 262.10746(39)# | ~5 ms | SF | (various) | 0+ |
1 2 3  畫上#號的數據代表沒有經過實驗的証明，僅為理論推測。
1 2 3  用括號括起來的數據代表不確定性。
↑  Not directly synthesized, occurs as decay product of 257Rf
↑  Not directly synthesized, occurs as decay product of 262Lr
| 0 | 1 | 2 |
| --- | --- | --- |

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