Californium-249 (Cf-249)
Identity
- Protons
- 98
- Neutrons
- 151
- Mass number
- 249
- Mass
- 249.1 ± 1.3 u
- Mass excess
- 69.723 MeV
- Spin
- 9/2-
Stability
Half-life: 351 years
Natural occurrence
Not found in nature
Decays to
- alpha 100.0 % Cm-245
- spontaneous fission 5.0e-7 %