| bond with oxygen | 0.42 |
| pose little risk | 0.40 |
| leaked into aquifer | 0.40 |
| undergo beta decay | 0.37 |
| leaked into a discharge… | 0.35 |
| undergo radioactive dec… | 0.35 |
| fuse with deuterium | 0.32 |
| enter the body | 0.32 |
| occur in nature | 0.29 |
| emit weak beta particle | 0.29 |
| More » |
| birth defects | 0.16 |
| two neutrons | 0.54 |
| one proton | 0.49 |
| half-life of 12.3 years | 0.44 |
| produced | 0.63 |
| produced in nuclear rea… | 0.61 |
| used in research | 0.48 |
| difficult to contain | 0.46 |
| found as water | 0.45 |
| used in quantity | 0.44 |
| used in watch | 0.42 |
| separated | 0.39 |
| produced in upper atmos… | 0.37 |
| used as fuel | 0.35 |
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| dating water | 0.32 |