Across
- 1. reaction: Are changes in the structure of molecules
- 5. number: The degree of oxidation of an atom or ion.
- 6. Substance that is formed as the result of a chemical reaction.
- 9. The force which holds atoms together
- 10. Are the building blocks for all matter.
Down
- 2. Is a symbolic representation of a chemical reaction.
- 3. table: Shows element symbols, atomic numbers.
- 4. Numbers and symbols that show how to work something out.
- 7. A substance formed from two or more elements
- 8. Are the general term used to describe pieces of matter.