Input interpretation
Ca-48 | half-life
Result
1.9×10^19 years (-70 billion to 500 billion Gyr)
Decay properties
half-life | 1.9×10^19 years (-60 billion to 400 billion Gyr) mean lifetime | 2.7×10^19 years (-130 billion to 700 billion Gyr) decay constant | 1.2×10^-27 per second specific activity | 1.5×10^-5 Bq/g (becquerels per gram) width | 5.3×10^-43 eV (electronvolts) decay modes | 2β^- (double beta decay) | β^- (electron emission) final decay products | Ti-48 (0%)
Unit conversion
6×10^26 seconds
Comparisons as half-life
≈ half-life of bismuth-209 ( ≈ 6×10^26 s )
≈ 2.2 × half-life of tellurium-128 ( 2.775×10^26 s )