Input interpretation
U-232 (uranium-232)
Decay properties
half-life | 68.8 years (68.46 to 69.42 yr) mean lifetime | 99.6 years (98.81 to 100.1 yr) decay constant | 3.18×10^-10 per second specific activity | 827 GBq/g (gigabecquerels per gram) width | 2.1×10^-25 eV (electronvolts) decay modes | α (alpha emission) | ^24Ne (cluster emission) | ^28Mg (cluster emission) | SF (spontaneous fission) final decay products | Pb-208 (100%) | Pb-206 (4×10^-9%) | Hg-204 (5×10^-12%) | Pb-204 (0%) | Hg-200 (0%)
Decay modes
decay mode | α (alpha emission) branching ratio | 100% Q-value | 5.41363 MeV (megaelectronvolts) daughter nuclide | Th-228 decay mode | ^24Ne (cluster emission) branching ratio | 8.9×10^-10% daughter nuclide | Pb-208 decay mode | ^28Mg (cluster emission) branching ratio | 5×10^-12% daughter nuclide | Hg-204 decay mode | SF (spontaneous fission) branching ratio | 1×10^-12%
Radiation shielding
lead | 16.6 µm water | 42.4 µm air | 38.6 mm
Decay chain
Decay chain
Mass properties
atomic number (Z) | 92 mass number (A) | 232 neutron number | 140 atomic mass | 232.037156152 u (unified atomic mass units) mass excess | 34.610734 MeV (megaelectronvolts) binding energy per nucleon | 7.611892 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
spin parity J^π | 0^+ (atomic boson) magnetic moment | 0 μ_N
Quantum properties
Excitations
E_level | spin parity J^π | half-life τ_1/2 | width Δ 47.573 keV (kiloelectronvolts) | 2^+ | 2.45×10^-10 seconds | 1.86×10^-6 eV (electronvolts) 156.566 keV (kiloelectronvolts) | 4^+ | (unknown) | (unknown) 322.69 keV (kiloelectronvolts) | 6^+ | (unknown) | (unknown) 541.1 keV (kiloelectronvolts) | 8^+ | (unknown) | (unknown) 563.194 keV (kiloelectronvolts) | 1^- | (unknown) | (unknown) 628.965 keV (kiloelectronvolts) | 3^- | (unknown) | (unknown) 691.42 keV (kiloelectronvolts) | 0^+ | (unknown) | (unknown) 734.57 keV (kiloelectronvolts) | 2^+ | (unknown) | (unknown) 746.8 keV (kiloelectronvolts) | 5^- | (unknown) | (unknown) 805.88 keV (kiloelectronvolts) | 10^+ | (unknown) | (unknown)