Input interpretation
Tc-99 | daughter nuclides
Result
Ru-99
Natural abundance
12.76%
Decay mode
decay mode | β^- (electron emission) Q-value | 293.83 keV (kiloelectronvolts) daughter nuclide | Ru-99
Mass properties
atomic number (Z) | 44 mass number (A) | 99 neutron number | 55 atomic mass | 98.905939302 u (unified atomic mass units) mass excess | -87.616977 MeV (megaelectronvolts) binding energy per nucleon | 8.608627 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
spin parity J^π | 5/2^+ (atomic fermion) magnetic moment | -0.641 μ_N electric quadrupole moment | 0.079 eb (electron barns)
Quantum properties
Excitations
E_level | spin parity J^π | half-life τ_1/2 | width Δ 89.68 keV (kiloelectronvolts) | 3/2^+ | 2.05×10^-8 seconds | 2.23×10^-8 eV (electronvolts) 322.38 keV (kiloelectronvolts) | 3/2^+ | (unknown) | (unknown) 340.73 keV (kiloelectronvolts) | 7/2^+ | (unknown) | (unknown) 442.71 keV (kiloelectronvolts) | 3/2^+ | 1.1×10^-11 seconds | 4.1×10^-5 eV (electronvolts) 575.89 keV (kiloelectronvolts) | 5/2^+ | 1.1×10^-12 seconds | 4.1×10^-4 eV (electronvolts) 617.62 keV (kiloelectronvolts) | 7/2^+ | 7×10^-13 seconds | 7×10^-4 eV (electronvolts) 618.04 keV (kiloelectronvolts) | 1/2^+ | 1.04×10^-9 seconds | 4.39×10^-7 eV (electronvolts) 719.85 keV (kiloelectronvolts) | 9/2^+ | 2.25×10^-12 seconds | 2.03×10^-4 eV (electronvolts) 734.13 keV (kiloelectronvolts) | 5/2^+ | (unknown) | (unknown) 896.93 keV (kiloelectronvolts) | 1/2^+ or 3/2^+ or 5/2^+ (uncertain) | 1.5×10^-10 seconds | 3×10^-6 eV (electronvolts)