Input interpretation
Md-258 | decay modes
Result
α (alpha emission) | β^- (electron emission) | β^+ (positron emission)
Decay properties
half-life | 51.5 days (51.14 to 51.85 days) mean lifetime | 74.3 days (73.4 to 74.8 days) decay constant | 1.56×10^-7 per second specific activity | 363 TBq/g (terabecquerels per gram) width | 1.03×10^-22 eV (electronvolts) decay modes | α (alpha emission) | β^- (electron emission) | β^+ (positron emission) final decay products | Pb-206 (100%) | Tl-205 (2×10^-8) | Pb-208 (2.6×10^-11) | W-184 (9×10^-14) | Yb-168 (5×10^-29) | Er-164 (4×10^-29) | Dy-160 (2×10^-30) | Dy-156 (1×10^-32) | Sm-144 (1×10^-33) | Ce-140 (1×10^-34) | 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 | α (alpha emission) branching ratio | 100% Q-value | 7.27128 MeV (megaelectronvolts) daughter nuclide | Es-254 decay mode | β^- (electron emission) branching ratio | 1.5×10^-5 Q-value | 209 keV (kiloelectronvolts) daughter nuclide | No-258 decay mode | β^+ (positron emission) branching ratio | 1.5×10^-5 Q-value | 241 keV (kiloelectronvolts) daughter nuclide | Fm-258