| Similarity | Rank | |
|---|---|---|
| protons | 0.822 | 41243 |
| deuterium | 0.794 | 86208 |
| electron | 0.785 | 16811 |
| positron | 0.785 | 81180 |
| photon | 0.782 | 33504 |
| covalent | 0.763 | 79275 |
| hydrogen | 0.759 | 9917 |
| neutron | 0.755 | 35660 |
| molecule | 0.746 | 14352 |
| anion | 0.740 | 92865 |
| ion | 0.737 | 17463 |
| electrons | 0.737 | 17880 |
| hydroxyl | 0.731 | 64812 |
| kinetics | 0.728 | 54630 |
| neutrons | 0.728 | 44331 |
| ionized | 0.725 | 59187 |
| atoms | 0.722 | 14412 |
| ions | 0.722 | 19599 |
| atom | 0.721 | 16976 |
| neutrino | 0.714 | 70890 |
| molecules | 0.712 | 9399 |
| hydride | 0.711 | 95787 |
| ionization | 0.710 | 60226 |
| ligand | 0.707 | 49256 |
| ionizing | 0.700 | 62668 |