Input interpretation
Fm-259 Fe-53 | half-life
Results
Fm-259 | 1.5 seconds (1.17 to 1.83 s) Fe-53 | 8.52 minutes (8.479 to 8.541 min)
Units
Relative values
| visual | ratios | | comparisons Fm-259 | | 0.0029 | 1 | 99.71% smaller Fe-53 | | 1 | 340 | 34000% larger
Decay properties
| Fm-259 | Fe-53 half-life | 1.5 s (1.18 to 1.82 s) | 8.52 min (8.48 to 8.54 min) mean lifetime | 2.2 s (1.71 to 2.62 s) | 12.3 min (12.24 to 12.32 min) decay constant | 0.45 per second | 0.00136 per second specific activity | 1.1×10^9 TBq/g | 1.54×10^7 TBq/g width | 3×10^-16 eV | 8.94×10^-19 eV decay modes | SF (spontaneous fission) | β^+ (positron emission) final decay products | | Cr-53 (100%)