Input interpretation
Hg-177 (mercury-177) | Zn-63 (zinc-63)
Decay properties
| Hg-177 | Zn-63 half-life | 127.3 ms (125.48 to 129.12 ms) | 38.47 min (38.416 to 38.524 min) mean lifetime | 183.7 ms (181.04 to 186.27 ms) | 55.5 min (55.423 to 55.579 min) decay constant | 5.444 per second | 3.003×10^-4 per second specific activity | 1.852×10^10 TBq/g | 2.874×10^6 TBq/g width | 3.584×10^-15 eV | 1.977×10^-19 eV decay modes | α (alpha emission) | β^+ (positron emission) | β^+ (positron emission) final decay products | Tm-169 (70%) | Yb-173 (26%) | Ho-165 (8%) | Dy-161 (2×10^-4) | Gd-157 (2×10^-7) | Eu-153 (5×10^-10) | Sm-149 (4×10^-10) | Nd-145 (9×10^-11) | Pr-141 (3×10^-19) | Hf-177 (0) | Cu-63 (100%)
Decay modes
Hg-177
decay mode | α (alpha emission) branching ratio | 85% Q-value | 6.7358 MeV (megaelectronvolts) daughter nuclide | Pt-173 decay mode | β^+ (positron emission) branching ratio | 15% Q-value | 7.7471 MeV (megaelectronvolts) daughter nuclide | Au-177
Zn-63
decay mode | β^+ (positron emission) branching ratio | 100% Q-value | 2.34431 MeV (megaelectronvolts) daughter nuclide | Cu-63
Radiation shielding
Radiation shielding
Decay chain
Hg-177
Decay chain Hg-177
Zn-63
Decay chain Zn-63
Mass properties
| Hg-177 | Zn-63 atomic number (Z) | 80 | 30 mass number (A) | 177 | 63 neutron number | 97 | 33 atomic mass | 176.986279158 u (unified atomic mass units) | 62.933211566 u (unified atomic mass units) mass excess | -12.780882 MeV (megaelectronvolts) | -62.213025 MeV (megaelectronvolts) binding energy per nucleon | 7.789922 MeV (megaelectronvolts) | 8.686279 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
| Hg-177 | Zn-63 spin parity J^π | 13/2^+ (atomic fermion) | 3/2^- (atomic fermion) magnetic moment | (unknown) | -0.28164 μ_N electric quadrupole moment | (unknown) | 0.29 eb (electron barns)
Quantum properties