Input interpretation
![Am-239 | decay modes](../image_source/141b23f0ef45daf9f0734b22d2ae965a.png)
Am-239 | decay modes
Result
![ϵ (electron capture) | α (alpha emission)](../image_source/e30992cd313b54086c6e8c41baa41212.png)
ϵ (electron capture) | α (alpha emission)
Decay properties
![half-life | 11.9 hours (11.796 to 12.004 h) mean lifetime | 17.2 hours (17.018 to 17.318 h) decay constant | 1.62×10^-5 per second specific activity | 40800 TBq/g (terabecquerels per gram) width | 1.06×10^-20 eV (electronvolts) decay modes | ϵ (electron capture) | α (alpha emission) final decay products | Pb-207 (100%) | Tl-205 (9×10^-8%) | Pb-206 (8×10^-10%) | Pb-208 (1×10^-12%)](../image_source/2cae4462803cdc370e1a881a98d8c1f2.png)
half-life | 11.9 hours (11.796 to 12.004 h) mean lifetime | 17.2 hours (17.018 to 17.318 h) decay constant | 1.62×10^-5 per second specific activity | 40800 TBq/g (terabecquerels per gram) width | 1.06×10^-20 eV (electronvolts) decay modes | ϵ (electron capture) | α (alpha emission) final decay products | Pb-207 (100%) | Tl-205 (9×10^-8%) | Pb-206 (8×10^-10%) | Pb-208 (1×10^-12%)
Decay modes
![decay mode | ϵ (electron capture) branching ratio | 100% Q-value | 802.11 keV (kiloelectronvolts) daughter nuclide | Pu-239 decay mode | α (alpha emission) branching ratio | 0.01% Q-value | 5.9224 MeV (megaelectronvolts) daughter nuclide | Np-235](../image_source/cd13d21b90d69d3acc6843af3b6020a8.png)
decay mode | ϵ (electron capture) branching ratio | 100% Q-value | 802.11 keV (kiloelectronvolts) daughter nuclide | Pu-239 decay mode | α (alpha emission) branching ratio | 0.01% Q-value | 5.9224 MeV (megaelectronvolts) daughter nuclide | Np-235