| Similarity | Rank | |
|---|---|---|
| neutrons | 0.876 | 44331 |
| protons | 0.862 | 41243 |
| neutron | 0.862 | 35660 |
| isotopes | 0.850 | 45629 |
| hydrogen | 0.848 | 9917 |
| gaseous | 0.847 | 42339 |
| isotope | 0.846 | 45212 |
| neutrino | 0.845 | 70890 |
| atoms | 0.841 | 14412 |
| helium | 0.841 | 31291 |
| antimatter | 0.840 | 64679 |
| tritium | 0.836 | 73668 |
| thorium | 0.826 | 70297 |
| electrons | 0.819 | 17880 |
| ionized | 0.818 | 59187 |
| strontium | 0.810 | 86420 |
| electron | 0.808 | 16811 |
| radioactivity | 0.807 | 42842 |
| neutrinos | 0.807 | 66418 |
| superconducting | 0.806 | 84490 |
| isotopic | 0.802 | 82383 |
| fission | 0.801 | 39321 |
| ionization | 0.796 | 60226 |
| proton | 0.794 | 32838 |
| positron | 0.790 | 81180 |