Input interpretation
Am-239 | half-life
Result
11.9 hours (11.796 to 12.004 h)
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%)
Unit conversions
11 hours 53 minutes
42800 seconds
713 minutes
0.495 days