Input interpretation
Ac-209 Cn-282 | half-life
Results
Ac-209 | 100 ms (milliseconds) (-8 to 210 ms) Cn-282 | 30 seconds
Units
Relative values
| visual | ratios | | comparisons Ac-209 | | 0.0033 | 1 | 99.67% smaller Cn-282 | | 1 | 300 | 30000% larger
Decay properties
| Ac-209 | Cn-282 half-life | 100 ms (0 to 200 ms) | 30 s mean lifetime | 144 ms (-8 to 290 ms) | 43 s decay constant | 6.93 per second | 0.023 per second specific activity | 2×10^10 TBq/g | 5×10^7 TBq/g width | 3.16×10^-15 eV | 1.5×10^-17 eV decay modes | α (alpha emission) | β^+ (positron emission) | α (alpha emission) | SF (spontaneous fission) final decay products | Au-197 (70%) | Hg-201 (29%) | Tl-205 (1%) | Ir-193 (7×10^-5%) | Os-189 (7×10^-12%) | Ce-140 (0%) | Dy-156 (0%) | Dy-160 (0%) | Dy-164 (0%) | Er-164 (0%) | Er-168 (0%) | Gd-156 (0%) | Hf-176 (0%) | Hf-180 (0%) | Pb-206 (0%) | Pb-208 (0%) | Sm-144 (0%) | Sm-152 (0%) | Tl-205 (0%) | W-184 (0%) | Yb-168 (0%) | Yb-172 (0%)