Input interpretation
Pu-236 (plutonium-236)
Decay properties
half-life | 2.858 years (2.84 to 2.88 yr) mean lifetime | 4.123 years (4.09 to 4.16 yr) decay constant | 7.691×10^-9 per second specific activity | 19.62 TBq/g (terabecquerels per gram) width | 3.508×10^-24 eV (electronvolts) decay modes | α (alpha emission) | SF (spontaneous fission) | ^28Mg (cluster emission) | 2β^+ (double beta decay) 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 | 5.86707 MeV (megaelectronvolts) daughter nuclide | U-232 decay mode | SF (spontaneous fission) branching ratio | 1.36×10^-7% decay mode | ^28Mg (cluster emission) branching ratio | 2×10^-12% daughter nuclide | Pb-208 decay mode | 2β^+ (double beta decay) Q-value | -1.58801 MeV (megaelectronvolts) daughter nuclide | U-236
Radiation shielding
lead | 18.4 µm water | 48 µm air | 43.7 mm
Decay chain
Decay chain
Mass properties
atomic number (Z) | 94 mass number (A) | 236 neutron number | 142 atomic mass | 236.046057964 u (unified atomic mass units) mass excess | 42.902718 MeV (megaelectronvolts) binding energy per nucleon | 7.577913 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 44.63 keV (kiloelectronvolts) | 2^+ | (unknown) | (unknown) 147.45 keV (kiloelectronvolts) | 4^+ | (unknown) | (unknown) 305.8 keV (kiloelectronvolts) | 6^+ | (unknown) | (unknown) 515.7 keV (kiloelectronvolts) | 8^+ | (unknown) | (unknown) 698.31 keV (kiloelectronvolts) | 1^- | (unknown) | (unknown) 758.02 keV (kiloelectronvolts) | 3^- | (unknown) | (unknown) 773.5 keV (kiloelectronvolts) | 10^+ | (unknown) | (unknown) 866 keV (kiloelectronvolts) | 5^- | (unknown) | (unknown) 1074.3 keV (kiloelectronvolts) | 12^+ | (unknown) | (unknown) 1185.45 keV (kiloelectronvolts) | 5^- | 1.2×10^-6 seconds | 3.8×10^-10 eV (electronvolts)