Input interpretation
Sg-259 (seaborgium-259) | Pb-197 (lead-197)
Decay properties
| Sg-259 | Pb-197 half-life | 480 ms (340 to 780 ms) | 8 min (5.93 to 11 min) mean lifetime | 692 ms (0.48 to 1.1 s) | 11.5 min (8.52 to 14.6 min) decay constant | 1.44 per second | 0.00145 per second specific activity | 3.36×10^9 TBq/g | 4.43×10^6 TBq/g width | 6.59×10^-16 eV | 9.5×10^-19 eV decay modes | α (alpha emission) | SF (spontaneous fission) | β^+ (positron emission) final decay products | Pb-207 (40%) | Tl-205 (3×10^-10) | Pb-206 (3×10^-12) | Pb-208 (4×10^-15) | Au-197 (100%)
Decay modes
Sg-259
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%
Pb-197
decay mode | β^+ (positron emission) branching ratio | 100% Q-value | 2.5702 MeV (megaelectronvolts) daughter nuclide | Tl-197
Radiation shielding
Radiation shielding
Decay chain
Sg-259
Decay chain Sg-259
Pb-197
Decay chain Pb-197
Mass properties
| Sg-259 | Pb-197 atomic number (Z) | 106 | 82 mass number (A) | 259 | 197 neutron number | 153 | 115 atomic mass | 259.1145 u (unified atomic mass units) | 196.973431124 u (unified atomic mass units) mass excess | 106.656 MeV (megaelectronvolts) | -24.748749 MeV (megaelectronvolts) binding energy per nucleon | 7.339 MeV (megaelectronvolts) | 7.871298 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
| Sg-259 | Pb-197 spin parity J^π | 1/2^+ (atomic fermion) | 3/2^- (atomic fermion) magnetic moment | (unknown) | -1.0753 μ_N electric quadrupole moment | (unknown) | -0.08 eb (electron barns)
Units
