| 100% | PARTICLE | 8 | Proton or electron |
| 91% | PARTICLE | 8 | Proton or electron, for example |
| 87% | CHARGE | 6 | Quality of a proton or electron |
| 54% | PARTICLES | 9 | Electrons, protons, neutrons |
| 52% | OCTET | 5 | Oxygen's protons or neutrons, e.g. |
| 49% | ATOM | 4 | Protons, neutrons and electrons reside inside it |
| 48% | BETARAYS | 8 | Emissions of electrons or positrons |
| 47% | IONIZATION | 10 | *Process of electron gain or loss |
| 47% | OCTETS | 6 | Oxygen's protons, neutrons and electrons |
| 47% | ANION | 5 | Molecule with more electrons than protons |
| 46% | ATOMICCAGE | 10 | Holder of pet electrons, protons and neutrons? |
| 46% | IONS | 4 | Atoms that have gained or lost electrons |
| 45% | ION | 3 | Atom that has gained or lost an electron |
| 44% | ATOM | 4 | Particle made up of protons, neutrons, and electrons |
| 43% | ION | 3 | Tiny atom that has lost or gained an electron |
| 43% | ION | 3 | Atom in which electrons and protons don't equal |
| 43% | ABSORBS | 7 | A proton does this to an electron when they meet |
| 43% | ATOM | 4 | It contains protons and electrons |
| 43% | ATOM | 4 | Particle with protons and electrons |
| 43% | ATOMS | 5 | They contain protons and electrons |
| 43% | ATOM | 4 | Home for protons and electrons |
| 42% | ION | 3 | Electrically charged atom formed by gain or loss of electrons |
| 41% | ATOM | 4 | Tiny particle with protons, electrons, and neutrons |
| 41% | ICBM | 4 | Long-range missile such as the Atlas, Titan or Proton (inits) |
| 39% | ATOM | 4 | Particle with a proton and electron |
| 38% | ATOM | 4 | Chemical structure with protons and electrons |
| 38% | ATOM | 4 | Small particle with protons and electrons |
| 37% | ION | 3 | Electrically charged atom formed by the loss or gain of one or more electrons |
| 36% | DOUBLEBOND | 10 | Chemical link with two pairs of shared electrons, or what each starred answer forms |
| 33% | ICS | 3 | Suffix with electron |