Input interpretation
Th-232 | decay modes
Result
α (alpha emission) | SF (spontaneous fission) | ^24Ne +^26Ne (double cluster emission) | 2β^- (double beta decay)
Decay properties
half-life | 14 Gyr (gigayears) (-18 to 40 Gyr) mean lifetime | 20.2 Gyr (gigayears) (-30 to 90 Gyr) decay constant | 1.57×10^-18 per second specific activity | 4.07 kBq/g (kilobecquerels per gram) width | 7.16×10^-34 eV (electronvolts) decay modes | α (alpha emission) | SF (spontaneous fission) | ^24Ne +^26Ne (double cluster emission) | 2β^- (double beta decay) final decay products | Pb-208 (100%) | Pb-206 (4×10^-9%) | Pb-204 (0%) | Hg-200 (0%) | Hg-204 (0%)
Decay modes
decay mode | α (alpha emission) branching ratio | 100% Q-value | 4.0816 MeV (megaelectronvolts) daughter nuclide | Ra-228 decay mode | SF (spontaneous fission) branching ratio | 1.1×10^-9% decay mode | ^24Ne +^26Ne (double cluster emission) branching ratio | 2.78×10^-10% daughter nuclide | Yb-182 decay mode | 2β^- (double beta decay) Q-value | 837.57 keV (kiloelectronvolts) daughter nuclide | U-232