decay modes of Tl-182 vs Pa-220

Tl-182 Pa-220 | decay modes

Tl-182 | β^+ (positron emission) | α (alpha emission) Pa-220 | α (alpha emission) | β^+ (positron emission)

| Tl-182 | Pa-220 half-life | 3.1 s (1.8 to 4.4 s) | 780 ns (0.613 to 0.954 µs) mean lifetime | 4.5 s (2.5 to 6.5 s) | 1.13 µs (0.8932 to 1.358 µs) decay constant | 0.22 per second | 885000 per second specific activity | 7.4×10^8 TBq/g | 2.42×10^15 TBq/g width | 1×10^-16 eV | 5.85×10^-10 eV decay modes | β^+ (positron emission) | α (alpha emission) | α (alpha emission) | β^+ (positron emission) final decay products | W-182 (80%) | Hf-178 (15%) | Yb-170 (2.8%) | Er-166 (9×10^-5%) | Ta-181 (1×10^-5%) | Hf-177 (7×10^-9%) | Yb-174 (0%) | Pb-204 (100%) | Pb-208 (0.0022%) | Hg-200 (0%)

decay mode | β^+ (positron emission) branching ratio | 96% Q-value | 9.2029 MeV (megaelectronvolts) daughter nuclide | Hg-182 decay mode | α (alpha emission) branching ratio | 4% Q-value | 6.5502 MeV (megaelectronvolts) daughter nuclide | Au-178

decay mode | α (alpha emission) branching ratio | 100% Q-value | 9.8291 MeV (megaelectronvolts) daughter nuclide | Ac-216 decay mode | β^+ (positron emission) branching ratio | 3×10^-7% Q-value | 4.6856 MeV (megaelectronvolts) daughter nuclide | Th-220