Input interpretation
Yb-158 Np-235 | half-life
Results
Yb-158 | 89.4 seconds (80.6 to 98.2 s) Np-235 | 396.1 days (394.84 to 397.36 days)
Units
Relative values
| visual | ratios | | comparisons Yb-158 | | 2.61×10^-6 | 1 | 99.999739% smaller Np-235 | | 1 | 383000 | 3.83×10^7% larger
Decay properties
| Yb-158 | Np-235 half-life | 89.4 s (80.7 to 98.1 s) | 396.1 days (394.85 to 397.35 days) mean lifetime | 129 s (117.7 to 140.3 s) | 571.4 days (1.5608 to 1.5705 yr) decay constant | 0.00775 per second | 2.026×10^-8 per second specific activity | 2.96×10^7 TBq/g | 51.9 TBq/g width | 5.1×10^-18 eV | 1.333×10^-23 eV decay modes | β^+ (positron emission) | α (alpha emission) | ϵ (electron capture) | α (alpha emission) final decay products | Dy-158 (100%) | Nd-142 (0.0021%) | Gd-154 (0%) | Gd-158 (0%) | Sm-150 (0%) | Pb-207 (100%) | Tl-205 (9×10^-8%) | Pb-206 (8×10^-10%) | Pb-208 (1×10^-12%)