Input interpretation
Ac-231 | decay constant
Result
0.00154 per second
Decay properties
half-life | 7.5 minutes (7.32 to 7.68 min) mean lifetime | 10.8 minutes (10.6 to 11.1 min) decay constant | 0.00154 per second specific activity | 4.01×10^6 TBq/g (terabecquerels per gram) width | 1×10^-18 eV (electronvolts) decay modes | β^- (electron emission) final decay products | Pb-207 (100%) | Tl-205 (9×10^-10) | Pb-208 (1×10^-14)
Unit conversion
0.0923 per minute
Corresponding quantities
Lifetime from τ = 1/λ: | 650 seconds | 11 minutes
Half-life from t_(1/2) = log(2)/λ: | 451 seconds | 7.5 minutes