Input interpretation
Yb-158 (ytterbium-158)
Decay properties
half-life | 89.4 seconds (80.7 to 98.1 s) mean lifetime | 129 seconds (117.7 to 140.3 s) decay constant | 0.00775 per second specific activity | 2.96×10^7 TBq/g (terabecquerels per gram) width | 5.1×10^-18 eV (electronvolts) decay modes | β^+ (positron emission) | α (alpha emission) final decay products | Dy-158 (100%) | Nd-142 (0.0021%) | Gd-154 (0%) | Gd-158 (0%) | Sm-150 (0%)
Decay modes
decay mode | β^+ (positron emission) branching ratio | 100% Q-value | 1.6662 MeV (megaelectronvolts) daughter nuclide | Tm-158 decay mode | α (alpha emission) branching ratio | 0.0021% Q-value | 4.17242 MeV (megaelectronvolts) daughter nuclide | Er-154
Decay chain
Decay chain
Mass properties
atomic number (Z) | 70 mass number (A) | 158 neutron number | 88 atomic mass | 157.939865617 u (unified atomic mass units) mass excess | -56.014817 MeV (megaelectronvolts) binding energy per nucleon | 8.079232 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
spin parity J^π | 0^+ (atomic boson) magnetic moment | 0 μ_N
Quantum properties
Excitations
E_level | spin parity J^π | half-life τ_1/2 | width Δ 358.2 keV (kiloelectronvolts) | 2^+ | 2.5×10^-11 seconds | 1.8×10^-5 eV (electronvolts) 835.2 keV (kiloelectronvolts) | 4^+ | 3.8×10^-12 seconds | 1.2×10^-4 eV (electronvolts) 1403.5 keV (kiloelectronvolts) | 6^+ | (unknown) | (unknown) 2046.6 keV (kiloelectronvolts) | 8^+ | (unknown) | (unknown) 2121.4 keV (kiloelectronvolts) | 7^- | (unknown) | (unknown) 2230.2 keV (kiloelectronvolts) | 6^- | (unknown) | (unknown) 2573.8 keV (kiloelectronvolts) | 9^- | (unknown) | (unknown) 2650.2 keV (kiloelectronvolts) | 8^- | (unknown) | (unknown) 2653.4 keV (kiloelectronvolts) | 9^- | (unknown) | (unknown) 2743.5 keV (kiloelectronvolts) | 10^+ | (unknown) | (unknown)