Input interpretation
Fe-45 (iron-45) | Er-153 (erbium-153)
Decay properties
| Fe-45 | Er-153 half-life | 1.89 ms (1.63 to 2.43 ms) | 37.1 s (36.86 to 37.34 s) mean lifetime | 2.73 ms (2.34 to 3.55 ms) | 53.5 s (53.2 to 53.85 s) decay constant | 367 per second | 0.0187 per second specific activity | 4.91×10^12 TBq/g | 7.36×10^7 TBq/g width | 1.67×10^-13 eV | 1.23×10^-17 eV decay modes | 2p (two-proton emission) | β^+p (positron + delayed proton) | α (alpha emission) | β^+ (positron emission) final decay products | Ca-44 (23%) | Ca-42 (17%) | K-41 (4.5%) | Ca-43 (1.7%) | Ar-38 (0%) | Ar-40 (0%) | Ca-40 (0%) | Eu-153 (47%) | Sm-149 (44%) | Nd-145 (9%) | Pr-141 (2.5×10^-8%)
Decay modes
Fe-45
decay mode | 2p (two-proton emission) branching ratio | 75% Q-value | 1.1345 MeV (megaelectronvolts) daughter nuclide | Cr-43 decay mode | β^+p (positron + delayed proton) branching ratio | 25% daughter nuclide | Cr-44
Er-153
decay mode | α (alpha emission) branching ratio | 53% Q-value | 4.80227 MeV (megaelectronvolts) daughter nuclide | Dy-149 decay mode | β^+ (positron emission) branching ratio | 47% Q-value | 3.50924 MeV (megaelectronvolts) daughter nuclide | Ho-153
Radiation shielding
Radiation shielding
Decay chain
Fe-45
Decay chain Fe-45
Er-153
Decay chain Er-153
Mass properties
| Fe-45 | Er-153 atomic number (Z) | 26 | 68 mass number (A) | 45 | 153 neutron number | 19 | 85 atomic mass | 45.014578 u (unified atomic mass units) | 152.935063492 u (unified atomic mass units) mass excess | 13.579 MeV (megaelectronvolts) | -60.487968 MeV (megaelectronvolts) binding energy per nucleon | 7.318 MeV (megaelectronvolts) | 8.118954 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
| Fe-45 | Er-153 spin parity J^π | 3/2^+ (atomic fermion) | 7/2^- (atomic fermion) magnetic moment | (unknown) | -0.934 μ_N electric quadrupole moment | (unknown) | -0.42 eb (electron barns)
Quantum properties