Across
- 3. can be stretched into wires
- 5. negative ions
- 6. the strong forces of attraction between ions
- 9. the name of group 1 metals
- 11. can be beaten into sheets
- 12. positive ions
Down
- 1. the most reactive halogen
- 2. has a structure similar to silicon (IV) oxide
- 4. the weak attractive forces between molecules
- 7. a gas produced when a metal reacts with water
- 8. a form of carbon that conducts electricity
- 10. used to fill light bulbs