Input interpretation
Db-256 Hf-157 | half-life
Results
Db-256 | 1.6 seconds (0.9 to 2.9 s) Hf-157 | 110 ms (milliseconds) (96 to 124 ms)
Units
Relative values
| visual | ratios | | comparisons Hf-157 | | 0.069 | 1 | 93.1% smaller Db-256 | | 1 | 15 | 1400% larger
Decay properties
| Db-256 | Hf-157 half-life | 1.6 s (1 to 2.7 s) | 110 ms (97 to 123 ms) mean lifetime | 2.3 s (1 to 4.1 s) | 159 ms (140 to 180 ms) decay constant | 0.43 per second | 6.3 per second specific activity | 1×10^9 TBq/g | 2.42×10^10 TBq/g width | 2×10^-16 eV | 2.87×10^-15 eV decay modes | β^+ (positron emission) | SF (spontaneous fission) | α (alpha emission) | α (alpha emission) | β^+ (positron emission) final decay products | Pb-208 (0.08%) | Pb-206 (3×10^-12%) | Hg-204 (4×10^-15%) | Pb-204 (0%) | Hg-200 (0%) | Sm-149 (30%) | Nd-145 (7%) | Sm-144 (3%) | Ce-140 (6×10^-4%) | Pr-141 (2×10^-8%) | Eu-153 (0%) | Gd-157 (0%) | Sm-152 (0%)