| Similarity | Rank | |
|---|---|---|
| atoms | 0.873 | 14412 |
| atomic | 0.830 | 12781 |
| protons | 0.813 | 41243 |
| subatomic | 0.803 | 64342 |
| particle | 0.802 | 12203 |
| neutrons | 0.795 | 44331 |
| deuterium | 0.785 | 86208 |
| quarks | 0.783 | 65913 |
| electrons | 0.778 | 17880 |
| neutron | 0.774 | 35660 |
| molecule | 0.773 | 14352 |
| antimatter | 0.766 | 64679 |
| electron | 0.752 | 16811 |
| quark | 0.752 | 80240 |
| valence | 0.736 | 72254 |
| boson | 0.733 | 78382 |
| hydrogen | 0.728 | 9917 |
| neutrino | 0.727 | 70890 |
| photon | 0.726 | 33504 |
| covalent | 0.723 | 79275 |
| proton | 0.721 | 32838 |
| molecules | 0.719 | 9399 |
| aether | 0.716 | 94853 |
| particles | 0.708 | 7018 |
| photons | 0.707 | 31946 |