Input interpretation
Cf-237 (californium-237)
Decay properties
half-life | 2.1 seconds (1.78 to 2.44 s) mean lifetime | 3 seconds (2.57 to 3.49 s) decay constant | 0.33 per second specific activity | 8.5×10^8 TBq/g (terabecquerels per gram) width | 2.2×10^-16 eV (electronvolts) decay modes | SF (spontaneous fission) | β^+ (positron emission) | α (alpha emission) final decay products | Pb-207 (0%) | Tl-205 (0%)
Decay modes
decay mode | SF (spontaneous fission) branching ratio | 10% decay mode | β^+ (positron emission) Q-value | 3.698 MeV (megaelectronvolts) daughter nuclide | Bk-237 decay mode | α (alpha emission) Q-value | 8.1 MeV (megaelectronvolts) daughter nuclide | Cm-233
Decay chain
Decay chain
Mass properties
atomic number (Z) | 98 mass number (A) | 237 neutron number | 139 atomic mass | 237.06207 u (unified atomic mass units) mass excess | 57.818 MeV (megaelectronvolts) binding energy per nucleon | 7.504 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
spin parity J^π | 5/2^+ (atomic fermion)
Quantum properties