Across
- 2. building blocks
- 4. positive charge
- 8. negative charge
- 10. table table of the chemical elements
Down
- 1. elements or compounds not chemically bonded
- 3. takes up space and has weight
- 5. no charge
- 6. formula a set of chemical symbols showing the elements present in a compund
- 7. A single substance
- 9. elements chemically bonded