Across
- 2. - a negatively charged subatomic particle
- 3. - a no charge subatomic particle
- 4. - building blocks of all matter
- 6. - Smallest unit of a molecule
- 8. Reaction - a process where two substances mix and can be rearranged
- 10. Reaction - a process where two substances mix and can't be rearranged
Down
- 1. - a positively charged subatomic particle
- 5. - smallest unit of a chemical compound
- 7. - takes up space but no definite shape
- 9. number- How the whole numbers are arranged on the periodic table