| Answer | Crossword Clue |
|---|---|
| ATOM | Particle of an element. |
| ATOM | Smallest particle of an element. |
| ATOM | Element particle |
| MOL | Smallest particle of an elem. |
| MESON | Particle composed of a quark and an antiquark |
| GRAIN | Particle in an hourglass |
| NEUTRON | Particle in an atomic nucleus |
| ATOM | Particle depicted on an Emmy |
| BOSON | Physics particle with an integral spin |
| ANTIPROTON | Certain particle with an opposite charge |
| BOSON | Subatomic particle named for an Indian physicist |
| DELTARAY | Particle ejected from an atom during ionization |
| MUON | Subatomic particle more massive than an electron |
| MUON | Particle that can temporarily replace an electron |
