Berkelium-249 (Bk-249)
Identity
- Protons
- 97
- Neutrons
- 152
- Mass number
- 249
- Mass
- 249.1 ± 1.3 u
- Mass excess
- 69.846 MeV
- Spin
- 7/2+*
Stability
Half-life: 327 days
Natural occurrence
Not found in nature
Decays to
- beta minus 100.0 % Cf-249
- alpha 0.0014 % Am-245 (no page)
- spontaneous fission 4.7e-8 %