Input interpretation
Ac-206 (actinium-206) | Pm-132 (promethium-132)
Decay properties
| Ac-206 | Pm-132 half-life | 22 ms (10 to 40 ms) | 6.3 s (5.2 to 7.9 s) mean lifetime | 32 ms (10 to 70 ms) | 9.1 s (7.99 to 10.1 s) decay constant | 32 per second | 0.11 per second specific activity | 9.2×10^10 TBq/g | 5×10^8 TBq/g width | 1.4×10^-14 eV | 7.2×10^-17 eV decay modes | α (alpha emission) | β^+ (positron emission) | β^+ (positron emission) | β^+p (positron + delayed proton) final decay products | Pt-194 (90%) | Hg-198 (1%) | W-182 (0.4%) | Hg-202 (0.4%) | Hf-178 (0) | Os-190 (0) | Ba-132 (100%) | Xe-131 (5×10^-7) | Xe-132 (0)
Decay modes
Ac-206
decay mode | α (alpha emission) branching ratio | 100% Q-value | 7.9446 MeV (megaelectronvolts) daughter nuclide | Fr-202 decay mode | β^+ (positron emission) branching ratio | 0.2% Q-value | 8.924 MeV (megaelectronvolts) daughter nuclide | Ra-206
Pm-132
decay mode | β^+ (positron emission) branching ratio | 100% Q-value | 8.692 MeV (megaelectronvolts) daughter nuclide | Nd-132 decay mode | β^+p (positron + delayed proton) branching ratio | 5×10^-7 daughter nuclide | Pr-131
Radiation shielding
| Ac-206 lead | 27.6 µm water | 77.5 µm air | 70.6 mm
Decay chain
Ac-206
Decay chain Ac-206
Pm-132
Decay chain Pm-132
Mass properties
| Ac-206 | Pm-132 atomic number (Z) | 89 | 61 mass number (A) | 206 | 132 neutron number | 117 | 71 atomic mass | 206.01450498 u (unified atomic mass units) | 131.93375 u (unified atomic mass units) mass excess | 13.511303 MeV (megaelectronvolts) | -61.711 MeV (megaelectronvolts) binding energy per nucleon | 7.667724 MeV (megaelectronvolts) | 8.177 MeV (megaelectronvolts)
Mass properties
Nearby isotopes
Nearby isotopes
Quantum properties
| Ac-206 | Pm-132 spin parity J^π | 3^+ (atomic fermion) | 3^+ (atomic fermion) magnetic moment | 0 μ_N | (unknown)
Quantum properties