Input interpretation
Pt-181 (platinum-181)
Decay properties
half-life | 52 seconds (49.3 to 54.7 s) mean lifetime | 75 seconds (71.1 to 78.9 s) decay constant | 0.013 per second specific activity | 4.4×10^7 TBq/g (terabecquerels per gram) width | 8.8×10^-18 eV (electronvolts) decay modes | β^+ (positron emission) | α (alpha emission) final decay products | Ta-181 (100%) | Hf-177 (7×10^-4)
Decay modes
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
Decay chain
Decay chain
Mass properties
atomic number (Z) | 78 mass number (A) | 181 neutron number | 103 atomic mass | 180.963097285 u (unified atomic mass units) mass excess | -34.374658 MeV (megaelectronvolts) binding energy per nucleon | 7.924088 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
spin parity J^π | 1/2^- (atomic fermion)
Quantum properties
Excitations
E_level | spin parity J^π | half-life τ_1/2 | width Δ 79.41 keV (kiloelectronvolts) | 3/2^- | (unknown) | (unknown) 93.93 keV (kiloelectronvolts) | 5/2^- | (unknown) | (unknown) 116.65 keV (kiloelectronvolts) | 7/2^- | 3×10^-7 seconds | 1.52×10^-9 eV (electronvolts) 166.63 keV (kiloelectronvolts) | 5/2^- | (unknown) | (unknown) 235.4 keV (kiloelectronvolts) | 9/2^- | (unknown) | (unknown) 256.38 keV (kiloelectronvolts) | 7/2^- | (unknown) | (unknown) 275.99 keV (kiloelectronvolts) | 9/2^+ | 9.9×10^-8 seconds | 4.6×10^-9 eV (electronvolts) 278.09 keV (kiloelectronvolts) | 7/2^- | (unknown) | (unknown) 287.15 keV (kiloelectronvolts) | 7/2^+ | (unknown) | (unknown) 300.83 keV (kiloelectronvolts) | 9/2^- | (unknown) | (unknown)