Across
- 2. A state of matter with no fixed shape or volume
- 6. A negatively charged subatomic particle
- 9. A free-flowing substance that has volume
- 10. The number of protons in the nucleus of an atom
- 11. The total of Protons and Neutrons in the nucleus
Down
- 1. A positively charged subatomic particle
- 3. A stable shape, unlike liquid
- 4. A pure substance made up of one type of atom only
- 5. The mass of an atom
- 7. An uncharged subatomic particle
- 8. Anything that has mass and volume, anything that takes up space