Input interpretation
Fm-250 Db-262 | decay modes
Results
Fm-250 | α (alpha emission) | ϵ (electron capture) | SF (spontaneous fission) Db-262 | α (alpha emission) | SF (spontaneous fission) | β^+ (positron emission)
Decay properties
| Fm-250 | Db-262 half-life | 30 min (26.97 to 33.03 min) | 35 s (29.7 to 40.5 s) mean lifetime | 43 min (38.82 to 47.87 min) | 50 s (42.8 to 58.2 s) decay constant | 3.8×10^-4 per second | 0.02 per second specific activity | 930000 TBq/g | 4.6×10^7 TBq/g width | 2.5×10^-19 eV | 1.3×10^-17 eV decay modes | α (alpha emission) | ϵ (electron capture) | SF (spontaneous fission) | α (alpha emission) | SF (spontaneous fission) | β^+ (positron emission) final decay products | Pb-206 (100%) | Tl-205 (2×10^-6%) | Pb-208 (2.6×10^-9%) | W-184 (9×10^-12%) | Yb-168 (2×10^-15%) | Er-164 (2×10^-15%) | Dy-160 (7×10^-17%) | Dy-156 (4×10^-19%) | Sm-144 (4×10^-20%) | Ce-140 (5×10^-21%) | Dy-164 (0%) | Er-168 (0%) | Gd-156 (0%) | Hf-176 (0%) | Hf-180 (0%) | Sm-152 (0%) | Yb-172 (0%) | Pb-206 (60%) | Tl-205 (1×10^-6%) | Pb-208 (2×10^-9%) | W-184 (6×10^-12%) | Yb-168 (3×10^-27%) | Er-164 (3×10^-27%) | Dy-160 (1×10^-28%) | Dy-156 (7×10^-31%) | Sm-144 (7×10^-32%) | Ce-140 (7×10^-33%) | Dy-164 (0%) | Er-168 (0%) | Gd-156 (0%) | Hf-176 (0%) | Hf-180 (0%) | Sm-152 (0%) | Yb-172 (0%)
Decay modes
Fm-250
decay mode | α (alpha emission) branching ratio | 90% Q-value | 7.5569 MeV (megaelectronvolts) daughter nuclide | Cf-246 decay mode | ϵ (electron capture) branching ratio | 10% Q-value | 847 keV (kiloelectronvolts) daughter nuclide | Es-250 decay mode | SF (spontaneous fission) branching ratio | 0.0069%
Db-262
decay mode | α (alpha emission) branching ratio | 67% Q-value | 9.005 MeV (megaelectronvolts) daughter nuclide | Lr-258 decay mode | SF (spontaneous fission) branching ratio | 30% decay mode | β^+ (positron emission) branching ratio | 3% Q-value | 2.853 MeV (megaelectronvolts) daughter nuclide | Rf-262