Across
- 1. Na2O and MgO both react with acids to give a......... and water.
- 3. Heated magnesium and steam gives hydrogen and..
- 9. Oxide bonded ionically with some covalent character.
- 10. Oxidation state of Mg.
- 13. Noble gas in period 3.
- 14. .............. forms alkaline solutions in water.
- 15. Red and White phosphorus are...
- 17. Aluminium oxide and Silicon oxide are both..........in water.
Down
- 2. Can act as an acid or a base.
- 4. Structure of Magnesium Oxide.
- 5. Loss of electrons.
- 6. The three elements in period 3 that react with water are; Sodium, Magnesium and.....
- 7. Colour of flame when Sodium is heated with oxygen
- 8. Structure of Silicon Oxide
- 11. Bonding in P4O10.
- 12. Colour of flame when sodium is heated with oxygen.
- 16. All retains of elements in Period 3 are...