Input interpretation
Sg-259 (seaborgium-259)
Decay properties
half-life | 480 ms (milliseconds) (340 to 780 ms) mean lifetime | 692 ms (milliseconds) (0.48 to 1.1 s) decay constant | 1.44 per second specific activity | 3.36×10^9 TBq/g (terabecquerels per gram) width | 6.59×10^-16 eV (electronvolts) decay modes | α (alpha emission) | SF (spontaneous fission) final decay products | Pb-207 (40%) | Tl-205 (3×10^-10) | Pb-206 (3×10^-12) | Pb-208 (4×10^-15)
Decay modes
decay mode | α (alpha emission) branching ratio | 90% Q-value | 9.834 MeV (megaelectronvolts) daughter nuclide | Rf-255 decay mode | SF (spontaneous fission) branching ratio | 20%
Decay chain
Decay chain
Mass properties
atomic number (Z) | 106 mass number (A) | 259 neutron number | 153 atomic mass | 259.1145 u (unified atomic mass units) mass excess | 106.656 MeV (megaelectronvolts) binding energy per nucleon | 7.339 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
spin parity J^π | 1/2^+ (atomic fermion)
Quantum properties