Input interpretation
As-76 (arsenic-76) | Hf-185 (hafnium-185)
Decay properties
| As-76 | Hf-185 half-life | 26.261 h (26.23 to 26.29 h) | 210 s (2.85 to 4.15 min) mean lifetime | 37.886 h (37.83 to 37.94 h) | 5 min (4.13 to 5.98 min) decay constant | 7.3319×10^-6 per second | 0.0033 per second specific activity | 58156 TBq/g | 1.1×10^7 TBq/g width | 3.3448×10^-21 eV | 2.2×10^-18 eV decay modes | β^- (electron emission) | ϵ (electron capture) | β^- (electron emission) final decay products | Se-76 (100%) | Re-185 (100%)
Decay modes
As-76
decay mode | β^- (electron emission) branching ratio | 100% Q-value | 2.962547 MeV (megaelectronvolts) daughter nuclide | Se-76 decay mode | ϵ (electron capture) branching ratio | 0.02% Q-value | 923.543 keV (kiloelectronvolts) daughter nuclide | Ge-76
Hf-185
decay mode | β^- (electron emission) branching ratio | 100% Q-value | 3.037 MeV (megaelectronvolts) daughter nuclide | Ta-185
Radiation shielding
| As-76 | Hf-185 lead | 2.08 mm | 2.12 mm portland concrete | 7.57 mm | 7.77 mm water | 14.9 mm | 15.3 mm air | 12.8 m | 13.2 m
Decay chain
As-76
Decay chain As-76
Hf-185
Decay chain Hf-185
Mass properties
| As-76 | Hf-185 atomic number (Z) | 33 | 72 mass number (A) | 76 | 185 neutron number | 43 | 113 atomic mass | 75.922394021 u (unified atomic mass units) | 184.95882 u (unified atomic mass units) mass excess | -72.289504 MeV (megaelectronvolts) | -38.359 MeV (megaelectronvolts) binding energy per nucleon | 8.682792 MeV (megaelectronvolts) | 7.974 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
| As-76 | Hf-185 spin parity J^π | 2^- (atomic fermion) | 3/2^- (atomic fermion) magnetic moment | -0.906 μ_N | (unknown) electric quadrupole moment | 7 eb (electron barns) | (unknown)
Quantum properties