Input interpretation
W-178 | half-life
Result
21.6 days (21.1 to 21.93 days)
Decay properties
half-life | 21.6 days (21.1 to 21.92 days) mean lifetime | 31.1 days (30.7 to 31.63 days) decay constant | 3.72×10^-7 per second specific activity | 1260 TBq/g (terabecquerels per gram) width | 2.44×10^-22 eV (electronvolts) decay modes | ϵ (electron capture) final decay products | Hf-178 (100%)
Unit conversions
21 days 15 hours
1.87×10^6 seconds
31200 minutes
519 hours
3.09 weeks
0.712 months
Comparisons as half-life
≈ ( 0.011 ≈ 1/89 ) × half-life of cobalt-60 ( 1.6635×10^8 s )
≈ ( 0.023 ≈ 1/44 ) × half-life of sodium-22 ( 8.2108×10^7 s )