Input interpretation
Ac-229 Am-242 | half-life
Results
Ac-229 | 62.67 minutes (62.13 to 63.29 min) Am-242 | 16.019 hours (15.997 to 16.043 h)
Units
Relative values
| visual | ratios | | comparisons Ac-229 | | 0.0652 | 1 | 93.48% smaller Am-242 | | 1 | 15.34 | 1434% larger
Decay properties
| Ac-229 | Am-242 half-life | 62.67 min (62.13 to 63.28 min) | 16.019 h (15.998 to 16.042 h) mean lifetime | 90.5 min (89.63 to 91.27 min) | 23.1 h (23.081 to 23.142 h) decay constant | 1.842×10^-4 per second | 1.2×10^-5 per second specific activity | 484200 TBq/g | 29900 TBq/g width | 1.21×10^-19 eV | 7.911×10^-21 eV decay modes | β^- (electron emission) | β^- (electron emission) | ϵ (electron capture) final decay products | Tl-205 (100%) | Pb-207 (7×10^-12) | Pb-206 (100%) | Tl-205 (1.9×10^-8) | Pb-208 (2.6×10^-11) | W-184 (9×10^-14) | Yb-168 (2×10^-17) | Er-164 (2×10^-17) | Dy-160 (6×10^-19) | Dy-156 (4×10^-21) | Sm-144 (4×10^-22) | Ce-140 (4×10^-23) | Dy-164 (0) | Er-168 (0) | Gd-156 (0) | Hf-176 (0) | Hf-180 (0) | Sm-152 (0) | Yb-172 (0)