Across
- 3. the consistent arrangement of atoms within a molecule
- 5. when a chemical reaction absorbs heat (energy)
- 6. large particle with no charge which makes up atoms
- 7. The positive or negative charge of an atom or molecule
- 8. when a chemical reaction releases heat (energy)
- 10. building blocks of all matter
- 12. when two or more atoms join together
Down
- 1. large positively charged particle which makes up atoms
- 2. small particle with a negative charge which orbits the nucleus of atoms
- 4. When a chemical reaction produces a solid and a liquid
- 9. a substance with a high pH
- 11. a substance with a low pH