Decay mode and Half-life of Uranium 232
- Uranium 232 decays via alpha decay to 228Th.
- The half-life of uranium 232 is only 68.9 years.
- Uranium 232 very rarely decays by spontaneous fission.
- Its specific activity is very high ~22 Ci/g and its decay chain produces very penetrating gamma rays.
| Isotope | Specific Activity |
|---|---|
| Uranium 232 | 22 Ci/g |
| Uranium 233 | 0.0098 Ci/g |
| Uranium 234 | 0.0063 Ci/g |
| Uranium 236 | 0.000065 Ci/g |
| Uranium 235 | 0.0000022 Ci/g |
| Uranium 238 | 0.00000034 Ci/g |
Table of specific activities of isotopes of uranium.