| 100% | POSITRON | 8 | Elementary particle of antimatter with the same mass as an electron, but a positive charge |
| 42% | POSITRONS | 9 | Subatomic particles with the same mass as electrons |
| 38% | NEUTRON | 7 | Uncharged elementary particle with a mass nearly equal to that of the proton |
| 33% | PION | 4 | Particle with a mass about 270 times that of an electron |
| 30% | CROISSANT | 9 | Pastry with the same shape as an Argentine medialuna |
| 30% | MUON | 4 | Subatomic particle similar to, but with a much greater mass than, an electron |
| 30% | GWB | 3 | Prez with the same initials as an N.Y.C. landmark |
| 30% | GWBUSH | 6 | Prez with the same initials as an N.Y.C. landmark |
| 30% | ORCA | 4 | Marine mammal with the same colors as an Oreo |
| 30% | ORCA | 4 | Whale with the same color scheme as a crossword |
| 29% | BALI | 4 | Lingerie company with the same name as an Indonesian island |
| 29% | YUAN | 4 | Coin with the same name as a dynasty |
| 29% | YALE | 4 | Lock company with the same name as an Ivy League university |
| 29% | FOUR | 4 | Only number with the same number of letters as its value |
| 29% | ISOMER | 6 | Compound with the same number of atoms in a different arrangement |
| 29% | TWEED | 5 | Fabric with the same name as a Scottish river |
| 29% | DELTA | 5 | Airline with the same name as a Greek letter |
| 29% | OUNCE | 5 | Unit of measure with the same Latin origin as "inch" |
| 29% | HERCULES | 8 | Beetle with the same name as a Roman divine hero |
| 29% | ASPENS | 6 | Trees with the same name as a Colorado ski resort |
| 28% | BALI | 4 | Intimate apparel brand with the same name as an Indonesian island |
| 28% | KAYAK | 5 | Travel website with the same name as a boat |
| 28% | HUMBOLDT | 8 | Berlin university with the same name as a penguin |
| 28% | HAIKU | 5 | Bit of poetry with the same syllable count as this very clue |
| 28% | TACOMA | 6 | Washington city with the same name as a Toyota truck |
| 28% | IRIS | 4 | Purple flower with the same name as a Greek goddess |
| 28% | GEORGIA | 7 | Asian country with the same name as a US state |
| 28% | STYX | 4 | Rock group with the same name as a mythical river |
| 28% | ONTARIO | 7 | Great Lake with the same name as a Canadian province |
| 28% | AJAX | 4 | Powdered cleanser with the same name as a Greek warrior |