퀴륨 동위 원소
표

| 핵종 기호 | Z(p)> 들뜬 에너지 | N(n)> 들뜬 에너지 | 동위 원소 질량 (u)> 들뜬 에너지 | 반감기 | 붕괴 방식 | 붕괴 생성물 | 핵 스핀 |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 232Cm | 96 | 136 |  | 1? min |  |  | 0+ |
| 233Cm | 96 | 137 | 233.05077(8) | 1# min | β+ | 233Am | 3/2+# |
| 233Cm | 96 | 137 | 233.05077(8) | 1# min | α | 229Pu | 3/2+# |
| 234Cm | 96 | 138 | 234.05016(2) | 51(12) s | β+ | 234Am | 0+ |
| 234Cm | 96 | 138 | 234.05016(2) | 51(12) s | α | 230Pu | 0+ |
| 235Cm | 96 | 139 | 235.05143(22)# | 5# min | β+ | 235Am | 5/2+# |
| 235Cm | 96 | 139 | 235.05143(22)# | 5# min | α | 231Pu | 5/2+# |
| 236Cm | 96 | 140 | 236.05141(22)# | 10# min | β+ | 236Am | 0+ |
| 236Cm | 96 | 140 | 236.05141(22)# | 10# min | α | 232Pu | 0+ |
| 237Cm | 96 | 141 | 237.05290(22)# | 20# min | β+ | 237Am | 5/2+# |
| 237Cm | 96 | 141 | 237.05290(22)# | 20# min | α | 233Pu | 5/2+# |
| 238Cm | 96 | 142 | 238.05303(4) | 2.4(1) h | ε (90%) | 238Am | 0+ |
| 238Cm | 96 | 142 | 238.05303(4) | 2.4(1) h | α (10%) | 234Pu | 0+ |
| 239Cm | 96 | 143 | 239.05496(11)# | ~2.9 h | β+ (99.9%) | 239Am | (7/2-) |
| 239Cm | 96 | 143 | 239.05496(11)# | ~2.9 h | α (0.1%) | 235Pu | (7/2-) |
| 240Cm | 96 | 144 | 240.0555295(25) | 27(1) d | α (99.5%) | 236Pu | 0+ |
| 240Cm | 96 | 144 | 240.0555295(25) | 27(1) d | ε (0.5%) | 240Am | 0+ |
| 240Cm | 96 | 144 | 240.0555295(25) | 27(1) d | SF (3.9×10−6%) | 다양 | 0+ |
| 241Cm | 96 | 145 | 241.0576530(23) | 32.8(2) d | ε (99%) | 241Am | 1/2+ |
| 241Cm | 96 | 145 | 241.0576530(23) | 32.8(2) d | α (1%) | 237Pu | 1/2+ |
| 242Cm | 96 | 146 | 242.0588358(20) | 162.8(2) d | α | 238Pu | 0+ |
| 242Cm | 96 | 146 | 242.0588358(20) | 162.8(2) d | SF (6.33×10−6%) | 다양 | 0+ |
| 242Cm | 96 | 146 | 242.0588358(20) | 162.8(2) d | CD (10−14%) | 208Pb 34Si | 0+ |
| 242Cm | 96 | 146 | 242.0588358(20) | 162.8(2) d | β+β+ (드묾) | 242Pu | 0+ |
| 243Cm | 96 | 147 | 243.0613891(22) | 29.1(1) a | α (99.71%) | 239Pu | 5/2+ |
| 243Cm | 96 | 147 | 243.0613891(22) | 29.1(1) a | ε (0.29%) | 243Am | 5/2+ |
| 243Cm | 96 | 147 | 243.0613891(22) | 29.1(1) a | SF (5.3×10−9%) | 다양 | 5/2+ |
| 243mCm | 87.4(1) keV | 87.4(1) keV | 87.4(1) keV | 1.08(3) µs |  |  | 1/2+ |
| 244Cm | 96 | 148 | 244.0627526(20) | 18.10(2) a | α | 240Pu | 0+ |
| 244Cm | 96 | 148 | 244.0627526(20) | 18.10(2) a | SF (1.34×10−4%) | 다양 | 0+ |
| 244mCm | 1040.188(12) keV | 1040.188(12) keV | 1040.188(12) keV | 34(2) ms | IT | 244Cm | 6+ |
| 245Cm | 96 | 149 | 245.0654912(22) | 8.5(1)×103 a | α | 241Pu | 7/2+ |
| 245Cm | 96 | 149 | 245.0654912(22) | 8.5(1)×103 a | SF (6.1×10−7%) | 다양 | 7/2+ |
| 245mCm | 355.90(10) keV | 355.90(10) keV | 355.90(10) keV | 290(20) ns |  |  | 1/2+ |
| 246Cm | 96 | 150 | 246.0672237(22) | 4.76(4)×103 a | α (99.97%) | 242Pu | 0+ |
| 246Cm | 96 | 150 | 246.0672237(22) | 4.76(4)×103 a | SF (0.0261%) | 다양 | 0+ |
| 247Cm | 96 | 151 | 247.070354(5) | 1.56(5)×107 a | α | 243Pu | 9/2- |
| 248Cm | 96 | 152 | 248.072349(5) | 3.48(6)×105 a | α (91.74%) | 244Pu | 0+ |
| 248Cm | 96 | 152 | 248.072349(5) | 3.48(6)×105 a | SF (8.26%) | 다양 | 0+ |
| 248Cm | 96 | 152 | 248.072349(5) | 3.48(6)×105 a | β-β- (드묾) | 248Cf | 0+ |
| 249Cm | 96 | 153 | 249.075953(5) | 64.15(3) min | β- | 249Bk | 1/2(+) |
| 249mCm | 48.758(17) keV | 48.758(17) keV | 48.758(17) keV | 23 µs |  |  | (7/2+) |
| 250Cm | 96 | 154 | 250.078357(12) | 8,300# a | SF (80%) | 다양 | 0+ |
| 250Cm | 96 | 154 | 250.078357(12) | 8,300# a | α (11%) | 246Pu | 0+ |
| 250Cm | 96 | 154 | 250.078357(12) | 8,300# a | β- (9%) | 250Bk | 0+ |
| 251Cm | 96 | 155 | 251.082285(24) | 16.8(2) min | β- | 251Bk | (1/2+) |
| 252Cm | 96 | 156 | 252.08487(32)# | <1 d | β- | 252Bk | 0+ |