Input interpretation
Rn-201 (radon-201) | Yb-151 (ytterbium-151)
Decay properties
| Rn-201 | Yb-151 half-life | 7 s (5.7 to 8.3 s) | 1.6 s (1.08 to 2.14 s) mean lifetime | 10 s (9.43 to 10.7 s) | 2.3 s (1.56 to 3.05 s) decay constant | 0.1 per second | 0.43 per second specific activity | 3×10^8 TBq/g | 1.7×10^9 TBq/g width | 6.5×10^-17 eV | 2.9×10^-16 eV decay modes | α (alpha emission) | β^+ (positron emission) | β^+ (positron emission) | β^+p (positron + delayed proton) final decay products | Au-197 (60%) | Hg-201 (6%) | Ir-193 (6×10^-5%) | Os-189 (6×10^-12%) | Eu-151 (70%) | Nd-143 (26%) | Nd-142 (0%) | Sm-150 (0%)
Decay modes
Rn-201
decay mode | α (alpha emission) branching ratio | 80% Q-value | 6.8609 MeV (megaelectronvolts) daughter nuclide | Po-197 decay mode | β^+ (positron emission) branching ratio | 20% Q-value | 5.6951 MeV (megaelectronvolts) daughter nuclide | At-201
Yb-151
decay mode | β^+ (positron emission) branching ratio | 100% Q-value | 8.216 MeV (megaelectronvolts) daughter nuclide | Tm-151 decay mode | β^+p (positron + delayed proton) daughter nuclide | Er-150
Radiation shielding
Radiation shielding
Decay chain
Rn-201
Decay chain Rn-201
Yb-151
Decay chain Yb-151
Mass properties
| Rn-201 | Yb-151 atomic number (Z) | 86 | 70 mass number (A) | 201 | 151 neutron number | 115 | 81 atomic mass | 200.995628335 u (unified atomic mass units) | 150.955400769 u (unified atomic mass units) mass excess | -4.072179 MeV (megaelectronvolts) | -41.543916 MeV (megaelectronvolts) binding energy per nucleon | 7.756841 MeV (megaelectronvolts) | 7.983765 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
| Rn-201 | Yb-151 spin parity J^π | 3/2^- (atomic fermion) | 1/2^+ (atomic fermion)
Quantum properties