Input interpretation
Xe-119 (xenon-119)
Decay properties
half-life | 5.83 minutes (5.42 to 6.18 min) mean lifetime | 8.3 minutes (7.86 to 8.9 min) decay constant | 0.002 per second specific activity | 1×10^7 TBq/g (terabecquerels per gram) width | 1.3×10^-18 eV (electronvolts) decay modes | e^+ (positron emission) | ϵ (electron capture) final decay products | Sn-119 (100%)
Decay modes
decay mode | e^+ (positron emission) branching ratio | 79% daughter nuclide | I-119 decay mode | ϵ (electron capture) branching ratio | 21% Q-value | 4.9711 MeV (megaelectronvolts) daughter nuclide | I-119
Decay chain
Decay chain
Mass properties
atomic number (Z) | 54 mass number (A) | 119 neutron number | 65 atomic mass | 118.915410688 u (unified atomic mass units) mass excess | -78.794437 MeV (megaelectronvolts) binding energy per nucleon | 8.378441 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
spin parity J^π | 5/2^+ (atomic fermion) magnetic moment | 0.59 μ_N
Quantum properties
Excitations
E_level | spin parity J^π | half-life τ_1/2 | width Δ 169.25 keV (kiloelectronvolts) | 5/2^+ | (unknown) | (unknown) 176.05 keV (kiloelectronvolts) | 7/2^- | 2×10^-8 seconds | 2.3×10^-8 eV (electronvolts) 197.1 keV (kiloelectronvolts) | 7/2^? | (unknown) | (unknown) 225.12 keV (kiloelectronvolts) | 7/2^+ | (unknown) | (unknown) 243.35 keV (kiloelectronvolts) | 11/2^- | 2.7×10^-8 seconds | 1.7×10^-8 eV (electronvolts) 245.9 keV (kiloelectronvolts) | (unknown) | (unknown) | (unknown) 246.35 keV (kiloelectronvolts) | 9/2^- | 4×10^-9 seconds | 1×10^-7 eV (electronvolts) 257.8 keV (kiloelectronvolts) | 7/2^+ | (unknown) | (unknown) 314 keV (kiloelectronvolts) | (unknown) | (unknown) | (unknown) 459.39 keV (kiloelectronvolts) | 9/2^+ | (unknown) | (unknown)