Input interpretation
Tm-164 (thulium-164)
Decay properties
half-life | 120 seconds (113 to 128 s) mean lifetime | 170 seconds (163 to 183 s) decay constant | 0.00588 per second specific activity | 2.16×10^7 TBq/g (terabecquerels per gram) width | 3.8×10^-18 eV (electronvolts) decay modes | ϵ (electron capture) | e^+ (positron emission) final decay products | Er-164 (100%) | Dy-160 (0) | Dy-164 (0)
Decay modes
decay mode | ϵ (electron capture) branching ratio | 61% Q-value | 4.0611 MeV (megaelectronvolts) daughter nuclide | Er-164 decay mode | e^+ (positron emission) branching ratio | 39% daughter nuclide | Er-164
Decay chain
Decay chain
Mass properties
atomic number (Z) | 69 mass number (A) | 164 neutron number | 95 atomic mass | 163.93356 u (unified atomic mass units) mass excess | -61.888462 MeV (megaelectronvolts) binding energy per nucleon | 8.119528 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
spin parity J^π | 1^+ (atomic fermion) magnetic moment | 2.37 μ_N electric quadrupole moment | 0.71 eb (electron barns)
Quantum properties
Excitations
E_level | spin parity J^π | half-life τ_1/2 | width Δ 37 keV (kiloelectronvolts) | 2^+ | (unknown) | (unknown) 37.575 keV (kiloelectronvolts) | 2^+ | (unknown) | (unknown) 40.928 keV (kiloelectronvolts) | 0^- or 1^- (uncertain) | (unknown) | (unknown) 108.78 keV (kiloelectronvolts) | 3^+ | (unknown) | (unknown) 110.3 keV (kiloelectronvolts) | 2^+ | (unknown) | (unknown) 121 keV (kiloelectronvolts) | 3^+ | (unknown) | (unknown) 134.93 keV (kiloelectronvolts) | 1^+ or 2^+ (uncertain) | (unknown) | (unknown) 158.6 keV (kiloelectronvolts) | 4^+ | (unknown) | (unknown) 173.5 keV (kiloelectronvolts) | 5^+ | (unknown) | (unknown) 225.8 keV (kiloelectronvolts) | 4^+ | (unknown) | (unknown)