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| Resources: Radioactive Isotope Half-Life Table |
| Radioisotope | Half-Life |
| Calcium - 45 (45Ca) | 162.7 days |
| Carbon - 14 (14C) | 5730 years |
| Chromium - 51 (51Cr) | 27.8 days |
| Hydrogen - 3 (3H) | 12.35 years |
| Iodine - 125 (125I) | 60.14 days |
| Iron - 59 (59Fe) | 44.5 days |
| Manganese - 54 (54Mn) | 312.5 days |
| Phosphorus - 32 (32P) | 14.29 days |
| Phosphorus - 33 (33P) | 25.3 days |
| Sodium - 22 (22Na) | 2.6 years |
| Sulfur - 35 (35S) | 87.39 days |