daughter nuclides of Md-258

Md-258 | daughter nuclides

Es-254 | No-258 | Fm-258

| Es-254 | No-258 | Fm-258 half-life | 275.7 days (275.17 to 276.23 days) | 1.2 ms (0.9 to 1.42 ms) | 370 µs (355.4 to 384.6 µs) mean lifetime | 397.8 days (396.99 to 398.51 days) | 1.7 ms (1.43 to 2.05 ms) | 534 µs (513.3 to 554.3 µs) decay constant | 2.91×10^-8 per second | 590 per second | 1870 per second specific activity | 68.96 TBq/g | 1.4×10^12 TBq/g | 4.37×10^12 TBq/g width | 1.915×10^-23 eV | 3.8×10^-13 eV | 1.23×10^-12 eV decay modes | α (alpha emission) | ϵ (electron capture) | β^- (electron emission) | SF (spontaneous fission) | SF (spontaneous fission) | α (alpha emission) | 2β^+ (double beta decay) | SF (spontaneous fission) | α (alpha 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 (5×10^-27%) | Er-164 (4×10^-27%) | Dy-160 (2×10^-28%) | Dy-156 (1×10^-30%) | Sm-144 (1×10^-31%) | Ce-140 (1×10^-32%) | Dy-164 (0%) | Er-168 (0%) | Gd-156 (0%) | Hf-176 (0%) | Hf-180 (0%) | Sm-152 (0%) | Yb-172 (0%) | Pb-206 (0.001%) | Tl-205 (2×10^-11%) | Pb-208 (2.6×10^-14%) | W-184 (9×10^-17%) | Yb-168 (5×10^-32%) | Er-164 (4×10^-32%) | Dy-160 (2×10^-33%) | Dy-156 (1×10^-35%) | Sm-144 (1×10^-36%) | Ce-140 (1×10^-37%) | Dy-164 (0%) | Er-168 (0%) | Gd-156 (0%) | Hf-176 (0%) | Hf-180 (0%) | Sm-152 (0%) | Yb-172 (0%) | Ce-140 (0%) | Dy-156 (0%) | Dy-160 (0%) | Dy-164 (0%) | Er-164 (0%) | Er-168 (0%) | Gd-156 (0%) | Hf-176 (0%) | Hf-180 (0%) | Pb-206 (0%) | Pb-208 (0%) | Sm-144 (0%) | Sm-152 (0%) | Tl-205 (0%) | W-184 (0%) | Yb-168 (0%) | Yb-172 (0%)

decay mode | α (alpha emission) branching ratio | 100% Q-value | 7.27128 MeV (megaelectronvolts) daughter nuclide | Es-254 decay mode | β^- (electron emission) branching ratio | 0.0015% Q-value | 209 keV (kiloelectronvolts) daughter nuclide | No-258 decay mode | β^+ (positron emission) branching ratio | 0.0015% Q-value | 241 keV (kiloelectronvolts) daughter nuclide | Fm-258

decay mode | α (alpha emission) branching ratio | 100% Q-value | 6.6157 MeV (megaelectronvolts) daughter nuclide | Bk-250 decay mode | ϵ (electron capture) branching ratio | 0.03% Q-value | 651.2 keV (kiloelectronvolts) daughter nuclide | Cf-254 decay mode | β^- (electron emission) branching ratio | 1.74×10^-4% Q-value | 1.0878 MeV (megaelectronvolts) daughter nuclide | Fm-254 decay mode | SF (spontaneous fission) branching ratio | 3×10^-6%

decay mode | SF (spontaneous fission) branching ratio | 100% decay mode | α (alpha emission) branching ratio | 0.001% Q-value | 8.15 MeV (megaelectronvolts) daughter nuclide | Fm-254 decay mode | 2β^+ (double beta decay) Q-value | -0.991 MeV (megaelectronvolts) daughter nuclide | Fm-258

decay mode | SF (spontaneous fission) branching ratio | 100% decay mode | α (alpha emission) Q-value | 6.66 MeV (megaelectronvolts) daughter nuclide | Cf-254

| Es-254 lead | 21.6 µm water | 57.9 µm air | 52.7 mm

Decay chain Es-254

Decay chain No-258

Decay chain Fm-258

| atomic number (Z) | mass number (A) | neutron number Es-254 | 99 | 254 | 155 No-258 | 102 | 258 | 156 Fm-258 | 100 | 258 | 158 | atomic mass | mass excess | binding energy per nucleon Es-254 | 254.088022021 u (unified atomic mass units) | 81.991986 MeV (megaelectronvolts) | 7.443584 MeV (megaelectronvolts) No-258 | 258.098207 u (unified atomic mass units) | 91.479 MeV (megaelectronvolts) | 7.407 MeV (megaelectronvolts) Fm-258 | 258.097076 u (unified atomic mass units) | 90.426 MeV (megaelectronvolts) | 7.418 MeV (megaelectronvolts)

Mass properties