버클륨 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 |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 235Bk | 97 | 138 | 235.05658(43)# | 20# s | α | 231Am |  |
| 235Bk | 97 | 138 | 235.05658(43)# | 20# s | β+ | 235Cm |  |
| 236Bk | 97 | 139 | 236.05733(43)# | 1# min | α | 232Am |  |
| 236Bk | 97 | 139 | 236.05733(43)# | 1# min | β+ | 236Cm |  |
| 237Bk | 97 | 140 | 237.05700(24)# | 1# min | α | 233Am | 7/2+# |
| 237Bk | 97 | 140 | 237.05700(24)# | 1# min | β+ (드묾) | 237Cm | 7/2+# |
| 238Bk | 97 | 141 | 238.05828(31)# | 2.40(8) min | α | 234Am |  |
| 238Bk | 97 | 141 | 238.05828(31)# | 2.40(8) min | β+, SF (0.048%) | 다양 |  |
| 238Bk | 97 | 141 | 238.05828(31)# | 2.40(8) min | β+ (드묾) | 238Cm |  |
| 239Bk | 97 | 142 | 239.05828(25)# | 3# min | α | 235Am | 7/2+# |
| 239Bk | 97 | 142 | 239.05828(25)# | 3# min | β+ | 239Cm | 7/2+# |
| 240Bk | 97 | 143 | 240.05976(16)# | 4.8(8) min | β+ (90%) | 240Cm |  |
| 240Bk | 97 | 143 | 240.05976(16)# | 4.8(8) min | α (10%) | 236Am |  |
| 240Bk | 97 | 143 | 240.05976(16)# | 4.8(8) min | β+, SF (0.002%) | 다양 |  |
| 241Bk | 97 | 144 | 241.06023(22)# | 4.6(4) min | α | 237Am | (7/2+) |
| 241Bk | 97 | 144 | 241.06023(22)# | 4.6(4) min | β+ (드묾) | 241Cm | (7/2+) |
| 242Bk | 97 | 145 | 242.06198(22)# | 7.0(13) min | β+ (99.99%) | 242Cm | 2-# |
| 242Bk | 97 | 145 | 242.06198(22)# | 7.0(13) min | β+, SF (3×10−4%) | 다양 | 2-# |
| 242mBk | 200(200)# keV | 200(200)# keV | 200(200)# keV | 600(100) ns |  |  |  |
| 243Bk | 97 | 146 | 243.063008(5) | 4.5(2) h | β+ (99.85%) | 243Cm | (3/2-) |
| 243Bk | 97 | 146 | 243.063008(5) | 4.5(2) h | α (0.15%) | 239Am | (3/2-) |
| 244Bk | 97 | 147 | 244.065181(16) | 4.35(15) h | β+ (99.99%) | 244Cm | (4-)# |
| 244Bk | 97 | 147 | 244.065181(16) | 4.35(15) h | α (0.006%) | 240Am | (4-)# |
| 245Bk | 97 | 148 | 245.0663616(25) | 4.94(3) d | ε (99.88%) | 245Cm | 3/2- |
| 245Bk | 97 | 148 | 245.0663616(25) | 4.94(3) d | α (0.12%) | 241Am | 3/2- |
| 246Bk | 97 | 149 | 246.06867(6) | 1.80(2) d | β+ (99.8%) | 246Cm | 2(-) |
| 246Bk | 97 | 149 | 246.06867(6) | 1.80(2) d | α (0.2%) | 242Am | 2(-) |
| 247Bk | 97 | 150 | 247.070307(6) | 1.38(25)×103 a | α | 243Am | (3/2-) |
| 247Bk | 97 | 150 | 247.070307(6) | 1.38(25)×103 a | SF (드묾) | 다양 | (3/2-) |
| 248Bk | 97 | 151 | 248.07309(8)# | >9 a | α | 244Am | 6+# |
| 248mBk | 30(70)# keV | 30(70)# keV | 30(70)# keV | 23.7(2) h |  |  | 1(-) |
| 249Bk | 97 | 152 | 249.0749867(28) | 330(4) d | β- | 249Cf | 7/2+ |
| 249Bk | 97 | 152 | 249.0749867(28) | 330(4) d | α (0.00145%) | 245Am | 7/2+ |
| 249Bk | 97 | 152 | 249.0749867(28) | 330(4) d | SF (4.7×10−8%) | 다양 | 7/2+ |
| 249mBk | 8.80(10) keV | 8.80(10) keV | 8.80(10) keV | 300 µs |  |  | (3/2-) |
| 250Bk | 97 | 153 | 250.078317(4) | 3.212(5) h | β- | 250Cf | 2- |
| 250m1Bk | 35.59(5) keV | 35.59(5) keV | 35.59(5) keV | 29(1) µs |  |  | (4+) |
| 250m2Bk | 84.1(21) keV | 84.1(21) keV | 84.1(21) keV | 213(8) µs |  |  | (7+) |
| 251Bk | 97 | 154 | 251.080760(12) | 55.6(11) min | β- | 251Cf | (3/2-)# |
| 251Bk | 97 | 154 | 251.080760(12) | 55.6(11) min | α (10−5%) | 247Am | (3/2-)# |
| 251mBk | 35.5(13) keV | 35.5(13) keV | 35.5(13) keV | 58(4) µs |  |  | (7/2+)# |
| 252Bk | 97 | 155 | 252.08431(22)# | 1.8(5) min | β- | 252Cf |  |
| 252Bk | 97 | 155 | 252.08431(22)# | 1.8(5) min | α | 248Am |  |
| 253Bk | 97 | 156 | 253.08688(39)# | 10# min | β- | 253Cf |  |
| 254Bk | 97 | 157 | 254.09060(32)# | 1# min | β- | 254Cf |  |