Across
- 2. a method of preparing insoluble salts
- 3. atoms of the same element with the same number of protons but different number of neutrons
- 6. proton acceptor
- 10. the name of Group 7 in the Periodic Table
- 11. a method of separating nitrogen from air
- 12. proton donor
- 13. particles that carry the current in metals
- 14. liquid metal
- 16. metals can be beaten / hammered into sheets
- 17. the gain of electrons
Down
- 1. metals can be stretched / drawn out into wires
- 3. particles that carry the current in aq. ionic compounds
- 4. a solution that contains the maximum amount of solute at specific temp.
- 5. the weak force of attraction between molecules
- 7. an oxide that reacts with both strong acid and strong base by neutralisation reaction
- 8. liquid non-metal
- 9. a form of carbon made of layers of hexagons and forms giant covalent structure
- 15. soluble base
- 18. more than enough