Across
- 3. A subatomic particle with a negative charge
- 4. Combination of 2 or more elements
- 6. Where a substance goes through a chemical change
- 8. The smallest part of a chemical element
- 9. Number in front of symbol
- 10. A substance undergoes a chemical reaction
Down
- 1. subatomic particle with a positive electrical charge
- 2. Substance formed as a result of a chemical reaction
- 5. A subatomic particle with a neutral charge
- 7. Shows how many atoms of an an element are present