Input interpretation
No-258 (nobelium-258)
Decay properties
half-life | 1.2 ms (milliseconds) (0.9 to 1.42 ms) mean lifetime | 1.7 ms (milliseconds) (1.43 to 2.05 ms) decay constant | 590 per second specific activity | 1.4×10^12 TBq/g (terabecquerels per gram) width | 3.8×10^-13 eV (electronvolts) decay modes | SF (spontaneous fission) | α (alpha emission) | 2β^+ (double beta decay) final decay products | 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%)
Decay modes
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 chain
Decay chain
Mass properties
atomic number (Z) | 102 mass number (A) | 258 neutron number | 156 atomic mass | 258.098207 u (unified atomic mass units) mass excess | 91.479 MeV (megaelectronvolts) binding energy per nucleon | 7.407 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
spin parity J^π | 0^+ (atomic boson) magnetic moment | 0 μ_N
Quantum properties