Across
- 7. smallest unit of a compound
- 8. forms anion with valency 3
- 9. monoatomic
- 11. liquid metal
- 12. CuSO4
- 13. poor conductor of electricy
Down
- 1. Ca(OH)2
- 2. BaCl2
- 3. lustrous non metal
- 4. mettaloids in nature
- 5. made up by only one kind of atom
- 6. atomicity 3
- 10. argon