Input interpretation
At-216 At-203 | decay modes
Results
At-216 | α (alpha emission) | β^- (electron emission) | ϵ (electron capture) At-203 | β^+ (positron emission) | α (alpha emission)
Decay properties
| At-216 | At-203 half-life | 300 µs (269.7 to 330.6 µs) | 7.33 min (7.12 to 7.68 min) mean lifetime | 433 µs (389.1 to 476.5 µs) | 10.7 min (10.3 to 11.1 min) decay constant | 2310 per second | 0.00156 per second specific activity | 6.44×10^12 TBq/g | 4.64×10^6 TBq/g width | 1.52×10^-12 eV | 1×10^-18 eV decay modes | α (alpha emission) | β^- (electron emission) | ϵ (electron capture) | β^+ (positron emission) | α (alpha emission) final decay products | Pb-208 (100%) | Tl-203 (69%) | Hg-199 (31%)
Decay modes
At-216
decay mode | α (alpha emission) branching ratio | 100% Q-value | 7.94963 MeV (megaelectronvolts) daughter nuclide | Bi-212 decay mode | β^- (electron emission) branching ratio | 6×10^-5 Q-value | 2.00168 MeV (megaelectronvolts) daughter nuclide | Rn-216 decay mode | ϵ (electron capture) branching ratio | 3×10^-9 Q-value | 473.41 keV (kiloelectronvolts) daughter nuclide | Po-216
At-203
decay mode | β^+ (positron emission) branching ratio | 69% Q-value | 4.1214 MeV (megaelectronvolts) daughter nuclide | Po-203 decay mode | α (alpha emission) branching ratio | 31% Q-value | 6.21005 MeV (megaelectronvolts) daughter nuclide | Bi-199