Input interpretation
At-219 Rn-223 | decay modes
Results
At-219 | α (alpha emission) | β^- (electron emission) Rn-223 | β^- (electron emission) | α (alpha emission)
Decay properties
| At-219 | Rn-223 half-life | 56 s (52.5 to 59.5 s) | 24.33 min (23.87 to 24.73 min) mean lifetime | 81 s (75.8 to 85.8 s) | 35 min (34.45 to 35.67 min) decay constant | 0.012 per second | 4.8×10^-4 per second specific activity | 3.4×10^7 TBq/g | 1.3×10^6 TBq/g width | 8.1×10^-18 eV | 3.13×10^-19 eV decay modes | α (alpha emission) | β^- (electron emission) | β^- (electron emission) | α (alpha emission) final decay products | Pb-207 (100%) | Pb-207 (100%) | Tl-205 (9×10^-10)
Decay modes
At-219
decay mode | α (alpha emission) branching ratio | 97% Q-value | 6.3236 MeV (megaelectronvolts) daughter nuclide | Bi-215 decay mode | β^- (electron emission) branching ratio | 3% Q-value | 1.5663 MeV (megaelectronvolts) daughter nuclide | Rn-219
Rn-223
decay mode | β^- (electron emission) branching ratio | 100% Q-value | 1.913 MeV (megaelectronvolts) daughter nuclide | Fr-223 decay mode | α (alpha emission) branching ratio | 4×10^-6 Q-value | 5.07 MeV (megaelectronvolts) daughter nuclide | Po-219