Input interpretation
Ge-85 (germanium-85)
Decay properties
half-life | 535 ms (milliseconds) (470 to 600 ms) mean lifetime | 772 ms (milliseconds) (680 to 860 ms) decay constant | 1.3 per second specific activity | 9.19×10^9 TBq/g (terabecquerels per gram) width | 5.91×10^-16 eV (electronvolts) decay modes | β^- (electron emission) | β^-n (electron + delayed neutron) final decay products | Kr-84 (65%) | Rb-85 (35%) | Kr-83 (3.9×10^-4)
Decay modes
decay mode | β^- (electron emission) branching ratio | 86% Q-value | 10.256 MeV (megaelectronvolts) daughter nuclide | As-85 decay mode | β^-n (electron + delayed neutron) branching ratio | 14% Q-value | 4.943 MeV (megaelectronvolts) daughter nuclide | As-84
Decay chain
Decay chain
Mass properties
atomic number (Z) | 32 mass number (A) | 85 neutron number | 53 atomic mass | 84.94303 u (unified atomic mass units) mass excess | -53.067 MeV (megaelectronvolts) binding energy per nucleon | 8.401 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
spin parity J^π | 5/2^+ (atomic fermion)
Quantum properties