Input interpretation
Fm-250 | half-life
Result
30 minutes (26.96 to 33.04 min)
Decay properties
half-life | 30 minutes (26.97 to 33.03 min) mean lifetime | 43 minutes (38.82 to 47.87 min) decay constant | 3.8×10^-4 per second specific activity | 930000 TBq/g (terabecquerels per gram) width | 2.5×10^-19 eV (electronvolts) decay modes | α (alpha emission) | ϵ (electron capture) | SF (spontaneous fission) final decay products | Pb-206 (100%) | Tl-205 (2×10^-8) | Pb-208 (2.6×10^-11) | W-184 (9×10^-14) | Yb-168 (2×10^-17) | Er-164 (2×10^-17) | Dy-160 (7×10^-19) | Dy-156 (4×10^-21) | Sm-144 (4×10^-22) | Ce-140 (5×10^-23) | Dy-164 (0) | Er-168 (0) | Gd-156 (0) | Hf-176 (0) | Hf-180 (0) | Sm-152 (0) | Yb-172 (0)
Unit conversions
1800 seconds
0.5 hours
Comparison as half-life
≈ 6 × half-life of uranium-241 ( ≈ 300 s )