Input interpretation
Pu-240 | decay modes
Result
α (alpha emission) | SF (spontaneous fission) | ^34Si (cluster emission)
Decay properties
half-life | 6561 years (6540 to 6580 yr) mean lifetime | 9466 years (9430 to 9500 yr) decay constant | 3.35×10^-12 per second specific activity | 8.404 GBq/g (gigabecquerels per gram) width | 1.528×10^-27 eV (electronvolts) decay modes | α (alpha emission) | SF (spontaneous fission) | ^34Si (cluster emission) 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 | 5.25575 MeV (megaelectronvolts) daughter nuclide | U-236 decay mode | SF (spontaneous fission) branching ratio | 5.7×10^-6% decay mode | ^34Si (cluster emission) branching ratio | 1.3×10^-13% daughter nuclide | Hg-206