Across
- 4. subatomic particle with a positive charge
- 5. row and columns of chemical elements
- 6. a particel of matter that uniquely defines an element
- 9. substance changes into an entirely new substance
- 10. subatomic particles with a negative charge
Down
- 1. only the appearance changes
- 2. a subatomic particle with no charge
- 3. symbol for Na
- 7. oppoasite of a base
- 8. gold,Copper, Iron