Input interpretation
Zr-104 (zirconium-104) | Ta-186 (tantalum-186)
Decay properties
| Zr-104 | Ta-186 half-life | 1.2 s (0.78 to 1.52 s) | 10.5 min (10.19 to 10.82 min) mean lifetime | 1.7 s (1.28 to 2.19 s) | 15.2 min (14.7 to 15.59 min) decay constant | 0.59 per second | 0.0011 per second specific activity | 3.4×10^9 TBq/g | 3.56×10^6 TBq/g width | 3.8×10^-16 eV | 7.24×10^-19 eV decay modes | β^- (electron emission) | β^- (electron emission) final decay products | Ru-104 (100%) | Rh-103 (0.06%) | Pd-104 (0%) | W-186 (100%) | Hf-178 (0%) | W-182 (0%)
Decay modes
Zr-104
decay mode | β^- (electron emission) branching ratio | 100% Q-value | 5.883 MeV (megaelectronvolts) daughter nuclide | Nb-104
Ta-186
decay mode | β^- (electron emission) branching ratio | 100% Q-value | 3.901 MeV (megaelectronvolts) daughter nuclide | W-186
Radiation shielding
| Zr-104 | Ta-186 lead | 3.68 mm | 2.64 mm portland concrete | 14.9 mm | 10 mm water | 29.9 mm | 19.9 mm air | 25.1 m | 16.9 m
Decay chain
Zr-104
Decay chain Zr-104
Ta-186
Decay chain Ta-186
Mass properties
| Zr-104 | Ta-186 atomic number (Z) | 40 | 73 mass number (A) | 104 | 186 neutron number | 64 | 113 atomic mass | 103.92878 u (unified atomic mass units) | 185.958552023 u (unified atomic mass units) mass excess | -66.341 MeV (megaelectronvolts) | -38.608542 MeV (megaelectronvolts) binding energy per nucleon | 8.408 MeV (megaelectronvolts) | 7.97184 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
| Zr-104 spin parity J^π | 0^+ (atomic boson) magnetic moment | 0 μ_N
Quantum properties