Across
- 3. A force of attraction between atoms
- 4. A scale used to specify the acidity or alkalinity of a solution
- 5. The smallest particle of a substance that can exist independently
- 7. The process of a substance changing from a solid to a liquid
- 9. A representation of a chemical compound
- 11. The smallest unit of an element that retains its chemical properties
- 12. The element with the symbol 'Fe' on the periodic table
- 14. The symbol for carbon on the periodic table
Down
- 1. The type of bond formed by the sharing of electrons
- 2. The study of matter and its changes
- 6. A substance that speeds up a chemical reaction without being consumed
- 8. The process of a substance changing from a liquid to a gas
- 10. The type of bond formed by the transfer of electrons
- 11. The symbol for gold on the periodic table
- 13. A common gas composed of two oxygen atoms