Input interpretation
Nb-81 Au-191 | half-life
Results
Nb-81 | 800 ms (milliseconds) Au-191 | 191 minutes (178 to 204 min)
Units
Relative values
| visual | ratios | | comparisons Nb-81 | | 7×10^-5 | 1 | 99.993% smaller Au-191 | | 1 | 14000 | 1.4×10^6% larger
Decay properties
| Nb-81 | Au-191 half-life | 800 ms | 191 min (179 to 203 min) mean lifetime | 1.2 s | 4.59 h (4.3 to 4.9 h) decay constant | 0.87 per second | 6.05×10^-5 per second specific activity | 6.4×10^9 TBq/g | 191000 TBq/g width | 4×10^-16 eV | 2.76×10^-20 eV decay modes | p (proton emission) | β^+ (positron emission) | β^+p (positron + delayed proton) | β^+ (positron emission) final decay products | Br-79 (0%) | Br-81 (0%) | Kr-80 (0%) | Ir-191 (100%)