Input interpretation
Pr-138 Nb-84 | half-life
Results
Pr-138 | 87 seconds (83 to 98 s) Nb-84 | 9.5 seconds (8 to 11 s)
Units
Relative values
| visual | ratios | | comparisons Nb-84 | | 0.11 | 1 | 89% smaller Pr-138 | | 1 | 9 | 800% larger
Decay properties
| Pr-138 | Nb-84 half-life | 87 s (83.1 to 97 s) | 9.5 s (8 to 11 s) mean lifetime | 126 s (121.1 to 129.9 s) | 14 s (11 to 17 s) decay constant | 0.00794 per second | 0.073 per second specific activity | 3.47×10^7 TBq/g | 5.2×10^8 TBq/g width | 5.24×10^-18 eV | 3.3×10^-17 eV decay modes | β^+ (positron emission) | β^+ (positron emission) | β^+p (positron + delayed proton) final decay products | Ce-138 (100%) | Ba-138 (0%) | Sr-84 (100%) | Kr-83 (0%) | Kr-84 (0%)