| Similarity | Rank | |
|---|---|---|
| radioactivity | 0.866 | 42842 |
| strontium | 0.849 | 86420 |
| tritium | 0.844 | 73668 |
| radioactive | 0.824 | 15026 |
| isotopes | 0.821 | 45629 |
| radium | 0.802 | 78644 |
| iodide | 0.801 | 66659 |
| isotope | 0.794 | 45212 |
| mercury | 0.787 | 12016 |
| deuterium | 0.787 | 86208 |
| fluorine | 0.785 | 79157 |
| phosphorus | 0.776 | 23230 |
| iodine | 0.775 | 22213 |
| ionizing | 0.771 | 62668 |
| arsenic | 0.764 | 26971 |
| phosphorous | 0.763 | 49921 |
| boron | 0.753 | 57042 |
| bromine | 0.751 | 75999 |
| neutrons | 0.749 | 44331 |
| cadmium | 0.748 | 41468 |
| plutonium | 0.745 | 35604 |
| thorium | 0.738 | 70297 |
| ionized | 0.732 | 59187 |
| zeolite | 0.732 | 90472 |
| beryllium | 0.732 | 85366 |