| Answer | Crossword Clue |
|---|---|
| crypton | a hypothetical subatomic particle |
| axions | AXION, a hypothetical subatomic particle |
| cryptons | CRYPTON, a hypothetical subatomic particle |
| strings | A hypothetical one-dimensional subatomic particle having the dynamical properties of a flexible loop |
| pentaquark | a hypothetical subatomic particle consisting of a group of five quarks (as compared to the usual three quarks) |
| pentaquarks | PENTAQUARK, a hypothetical subatomic particle consisting of a group of five quarks (as compared to the usual three quarks) |
| axion | a hypothetical subatomic particle of low mass and energy that is postulated to exist because of certain properties of the strong force |
