Input interpretation
Ca-40 | half-life
Result
3×10^21 years (9.12×10^8 to ∞ s)
Decay properties
half-life | 3×10^21 years (9.13×10^8 to ∞ s) mean lifetime | 4.3×10^21 years (1.31×10^9 to ∞ s) decay constant | 7.3×10^-30 per second specific activity | 1.1×10^-7 Bq/g (becquerels per gram) width | 3.3×10^-45 eV (electronvolts) final decay products | Ca-40 (100%) | Ar-40 (0%)
Unit conversion
9.5×10^28 seconds