| Similarity | Rank | |
|---|---|---|
| proton | 0.838 | 20444 |
| electron | 0.791 | 9389 |
| neutrino | 0.771 | 41916 |
| gamma_ray | 0.768 | 77142 |
| photon | 0.762 | 18937 |
| atom | 0.757 | 7438 |
| an_electron | 0.721 | 98873 |
| isotope | 0.718 | 40195 |
| hydrogen_atom | 0.709 | 96670 |
| cosmic_ray | 0.693 | 60042 |
| quark | 0.674 | 60736 |
| fission | 0.669 | 73502 |
| an_atom | 0.664 | 91778 |
| these_particle | 0.656 | 95022 |
| ion | 0.640 | 12236 |
| nucleus | 0.637 | 10929 |
| particle | 0.636 | 4733 |
| plutonium | 0.635 | 35882 |
| tritium | 0.633 | 90971 |
| water_molecule | 0.624 | 62720 |
| molecule | 0.624 | 4870 |
| supernova | 0.619 | 47013 |
| magnetic_field | 0.617 | 15604 |
| helium | 0.615 | 38634 |
| radioactivity | 0.615 | 39280 |