Input interpretation
Fm-259 Dy-155 | half-life
Results
Fm-259 | 1.5 seconds (1.17 to 1.83 s) Dy-155 | 10 hours (9.54 to 10.3 h)
Units
Relative values
| visual | ratios | | comparisons Fm-259 | | 4.2×10^-5 | 1 | 99.9958% smaller Dy-155 | | 1 | 24000 | 2.4×10^6% larger
Decay properties
| Fm-259 | Dy-155 half-life | 1.5 s (1.18 to 1.82 s) | 10 h (9.55 to 10.3 h) mean lifetime | 2.2 s (1.71 to 2.62 s) | 14 h (13.9 to 14.7 h) decay constant | 0.45 per second | 2×10^-5 per second specific activity | 1.1×10^9 TBq/g | 76000 TBq/g width | 3×10^-16 eV | 1.3×10^-20 eV decay modes | SF (spontaneous fission) | β^+ (positron emission) final decay products | | Gd-155 (100%)