Input interpretation
At-211 Rb-87 | decay modes
Results
At-211 | ϵ (electron capture) | α (alpha emission) Rb-87 | β^- (electron emission)
Decay properties
| At-211 | Rb-87 half-life | 7.2139 h (7.2059 to 7.2222 h) | 48.1 Gyr (-90 to 170 Gyr) mean lifetime | 10.408 h (10.397 to 10.419 h) | 69.4 Gyr (-150 to 290 Gyr) decay constant | 2.6688×10^-5 per second | 4.57×10^-19 per second specific activity | 76175 TBq/g | 3.17 kBq/g width | 1.757×10^-20 eV | 2.08×10^-34 eV decay modes | ϵ (electron capture) | α (alpha emission) | β^- (electron emission) final decay products | Pb-207 (100%) | Sr-87 (100%)
Decay modes
At-211
decay mode | ϵ (electron capture) branching ratio | 58.2% Q-value | 785.36 keV (kiloelectronvolts) daughter nuclide | Po-211 decay mode | α (alpha emission) branching ratio | 41.8% Q-value | 5.98237 MeV (megaelectronvolts) daughter nuclide | Bi-207
Rb-87
decay mode | β^- (electron emission) branching ratio | 100% Q-value | 282.62 keV (kiloelectronvolts) daughter nuclide | Sr-87