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Berkelium |
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Number of Energy Levels: 7 First Energy Level: 2 Second Energy Level: 8 Third Energy Level: 18 Fourth Energy Level: 32 Fifth Energy Level: 26 Sixth Energy Level: 9 Seventh Energy Level: 2 |
| Isotope | Half Life |
| Bk-242 | 7 minutes |
| Bk-244 | 4.4 hours |
| Bk-245 | 4.9 days |
| Bk-247 | 1400 years |
| Bk-248 | 23.7 hours |
| Bk-249 | 320 days |
| Bk-250 | 3.22 hours |
| Bk-251 | 56 minutes |