Across
- 3. When one element takes the place of another in a chemical reaction
- 4. Unreactive metal used for jewellery
- 9. Gas produced when metals react with water or acid
- 11. The least reactive alkali metal
- 14. Chemical bond between metal ions
- 16. A substance that contains only 1 element or compound
- 17. A mixture of containing at least one metal eg steel
- 19. Burning
- 20. Large diagram showing elements in order of atomic number
- 21. The process of getting metal out of ore
Down
- 1. Sodium _________ is a strong alkali
- 2. A reaction that can go forwards or backwards
- 5. The substances on the left of the arrow in a chemical reaction
- 6. Can be hammered into shape
- 7. When an atom loses electrons
- 8. The substances on the right of the arrow in a chemical reaction
- 10. When an atom gains electrons
- 12. Metals in Group 1
- 13. Negative sub-atomic particle found orbiting the nucleus
- 15. Non-metal that's more reactive than iron
- 18. Elements found in Group 7
- 22. A substance containing 2 or more element chemically bonded