Input interpretation
Pt-181 (platinum-181) | Rn-214 (radon-214)
Decay properties
| Pt-181 | Rn-214 half-life | 52 s (49.3 to 54.7 s) | 270 ns (249.7 to 290.3 ns) mean lifetime | 75 s (71.1 to 78.9 s) | 390 ns (360.3 to 418.7 ns) decay constant | 0.013 per second | 2.56×10^6 per second specific activity | 4.4×10^7 TBq/g | 7.22×10^15 TBq/g width | 8.8×10^-18 eV | 1.69×10^-9 eV decay modes | β^+ (positron emission) | α (alpha emission) | α (alpha emission) | 2β^+ (double beta decay) final decay products | Ta-181 (100%) | Hf-177 (7×10^-4) | Pb-206 (100%)
Decay modes
Pt-181
decay mode | β^+ (positron emission) branching ratio | 100% Q-value | 4.0749 MeV (megaelectronvolts) daughter nuclide | Ir-181 decay mode | α (alpha emission) branching ratio | 7.4×10^-4 Q-value | 5.14996 MeV (megaelectronvolts) daughter nuclide | Os-177
Rn-214
decay mode | α (alpha emission) branching ratio | 100% Q-value | 9.2084 MeV (megaelectronvolts) daughter nuclide | Po-210 decay mode | 2β^+ (double beta decay) Q-value | -1.89424 MeV (megaelectronvolts) daughter nuclide | Po-214
Radiation shielding
| Pt-181 lead | 33.9 µm water | 98.6 µm air | 89.7 mm
Decay chain
Pt-181
Decay chain Pt-181
Rn-214
Decay chain Rn-214
Mass properties
| Pt-181 | Rn-214 atomic number (Z) | 78 | 86 mass number (A) | 181 | 214 neutron number | 103 | 128 atomic mass | 180.963097285 u (unified atomic mass units) | 213.995362554 u (unified atomic mass units) mass excess | -34.374658 MeV (megaelectronvolts) | -4.319753 MeV (megaelectronvolts) binding energy per nucleon | 7.924088 MeV (megaelectronvolts) | 7.777102 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
| Pt-181 | Rn-214 spin parity J^π | 1/2^- (atomic fermion) | 0^+ (atomic boson) magnetic moment | (unknown) | 0 μ_N
Quantum properties