| Nuc- lide | Atomic Mass | NN | Abun % | Spin | Half Life | DM | DT | BR % | Decay Energy (MeV) |
|---|---|---|---|---|---|---|---|---|---|
| Cf237 | 237.062 | 139 | Syn | 2.1s | |||||
| Cf238 | 238.061 | 140 | Syn | 0+ | 21ms | SF | <25 | ||
| Cf239 | 239.063 | 141 | Syn | 39s | α | Cm235 | >50 | 7.810 | |
| 39s | ε | Bk239 | 3.900 | ||||||
| Cf240 | 240.062 | 142 | Syn | 0+ | 1.06m | α | Cm236 | ~100 | 7.719 |
| Cf241 | 241.064 | 143 | Syn | 3.78m | ε | Bk241 | ~75 | 3.300 | |
| 3.78m | α | Cm237 | ~25 | 7.660 | |||||
| Cf242 | 242.0637 | 144 | Syn | 0+ | 3.49m | α | Cm238 | 7.516 | |
| Cf243 | 243.066 | 145 | Syn | 1/2+ | 10.7m | ε | Bk243 | ~86 | 2.220 |
| 10.7m | α | Cm239 | ~14 | 7.390 | |||||
| Cf244 | 244.066 | 146 | Syn | 0+ | 19.4m | α | Cm240 | 7.329 | |
| Cf245 | 245.068 | 147 | Syn | 5/2+ | 45m | ε | Bk245 | 64 | 1.569 |
| 45m | α | Cm241 | 36 | 7.256 | |||||
| Cf246 | 246.0688 | 148 | Syn | 0+ | 35.7h | ε | Bk246 | <0.0005 | 0.120 |
| 35.7h | SF | 0.0002 | |||||||
| 35.7h | α | Cm242 | 6.862 | ||||||
| Cf247 | 247.071 | 149 | Syn | 7/2+ | 3.11h | ε | Bk247 | 99.97 | 0.646 |
| 3.11h | α | Cm243 | 0.04 | 6.527 | |||||
| Cf248 | 248.0722 | 150 | Syn | 0+ | 333.5d | SF | 0.0029 | ||
| 333.5d | α | Cm244 | 6.361 | ||||||
| Cf249 | 249.0748 | 151 | Syn | 9/2- | 351y | SF | 5.2E -7 | ||
| 351y | α | Cm245 | 6.295 | ||||||
| Cf250 | 250.0764 | 152 | Syn | 0+ | 13.08y | α | Cm246 | 99.92 | 6.128 |
| 13.08y | SF | 0.08 | |||||||
| Cf251 | 251.0796 | 153 | Syn | 1/2+ | 898y | α | Cm247 | 6.176 | |
| Cf252 | 252.0816 | 154 | Syn | 0+ | 2.645y | α | Cm248 | 96.91 | 6.217 |
| 2.645y | SF | 3.09 | |||||||
| Cf253 | 253.0851 | 155 | Syn | 7/2+ | 17.81d | β- | Es253 | 99.69 | 0.285 |
| 17.81d | α | Cm249 | 0.31 | 6.124 | |||||
| Cf254 | 254.0873 | 156 | Syn | 0+ | 60.5d | SF | 99.69 | ||
| 60.5d | α | Cm250 | 0.31 | 5.926 | |||||
| Cf255 | 255.091 | 157 | Syn | 9/2+ | 85m | β- | Es255 | 0.700 | |
| Cf256 | 256.093 | 158 | Syn | 0+ | 12.3m | β- | Es256 | <1 | |
| 12.3m | α | Cm252 | ~1.0E -6 | 5.600 | |||||
| Nuclide | Potential Parent Nuclides |
|---|---|
| Cf237 | None known |
| Cf238 | None known |
| Cf239 | Fm243 (Syn) |
| Cf240 | None known |
| Cf241 | Cm237 (Syn) Fm245 (Syn) |
| Cf242 | Es242 (Syn) Fm246 (Syn) |
| Cf243 | Es243 (Syn) Fm247 (Syn) |
| Cf244 | Es244 (Syn) Fm248 (Syn) |
| Cf245 | Es245 (Syn) Fm249 (Syn) |
| Cf246 | Es246 (Syn) Fm250 (Syn) |
| Cf247 | Es247 (Syn) Fm251 (Syn) |
| Cf248 | Bk248m (Syn) Es248 (Syn) Fm252 (Syn) |
| Cf249 | Bk249 (Syn) Es249 (Syn) Fm253 (Syn) |
| Cf250 | Bk250 (Syn) Es250 (Syn) Es250m (Syn) Fm254 (Syn) |
| Cf251 | Bk251 (Syn) Es251 (Syn) Fm255 (Syn) |
| Cf252 | Es252 (Syn) Fm256 (Syn) |
| Cf253 | Fm257 (Syn) |
| Cf254 | Es254 (Syn) Es254m (Syn) |
| Cf255 | None known |
| Cf256 | None known |
Key:
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Kenneth Barbalace. Periodic Table of Elements - Cf - Californium. EnvironmentalChemistry.com. 1995 - 2024. Accessed on-line: 11/21/2024
https://EnvironmentalChemistry.com/yogi/periodic/Cf-pg2.html
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