Input interpretation
Ge-85 (germanium-85) | Ag-125 (silver-125)
Decay properties
| Ge-85 | Ag-125 half-life | 535 ms (470 to 600 ms) | 166 ms (158.8 to 173.2 ms) mean lifetime | 772 ms (680 to 860 ms) | 239 ms (229.2 to 249.8 ms) decay constant | 1.3 per second | 4.18 per second specific activity | 9.19×10^9 TBq/g | 2.02×10^10 TBq/g width | 5.91×10^-16 eV | 2.75×10^-15 eV decay modes | β^- (electron emission) | β^-n (electron + delayed neutron) | β^- (electron emission) | β^-n (electron + delayed neutron) final decay products | Kr-84 (65%) | Rb-85 (35%) | Kr-83 (3.9×10^-4) | Te-125 (100%) | Te-124 (0) | Sn-124 (0)
Decay modes
Ge-85
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
Ag-125
decay mode | β^- (electron emission) branching ratio | 100% Q-value | 8.554 MeV (megaelectronvolts) daughter nuclide | Cd-125 decay mode | β^-n (electron + delayed neutron) Q-value | 3.835 MeV (megaelectronvolts) daughter nuclide | Cd-124
Radiation shielding
| Ge-85 lead | 4.85 mm portland concrete | 21.2 mm water | 42.9 mm air | 35.4 m
Decay chain
Ge-85
Decay chain Ge-85
Ag-125
Decay chain Ag-125
Mass properties
| Ge-85 | Ag-125 atomic number (Z) | 32 | 47 mass number (A) | 85 | 125 neutron number | 53 | 78 atomic mass | 84.94303 u (unified atomic mass units) | 124.93043 u (unified atomic mass units) mass excess | -53.067 MeV (megaelectronvolts) | -64.804 MeV (megaelectronvolts) binding energy per nucleon | 8.401 MeV (megaelectronvolts) | 8.296 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
| Ge-85 | Ag-125 spin parity J^π | 5/2^+ (atomic fermion) | 7/2^+ (atomic boson)
Quantum properties