Across
- 2. This group do not form ions
- 4. All atoms want this type of outer shell
- 7. The type of atoms that form negative ions
- 10. The name given to negative ions
Down
- 1. The name of the ion formed by chlorine
- 3. The total charge on an aluminium ion
- 5. The total charge on a calcium ion
- 6. Another name for positive ions
- 8. The type of atoms that form positive ions
- 9. This group forms -2 ions