Across
- 3. What is made in a chemical reaction
- 8. Can be bent and shaped without breaking
- 9. Sub-atomic particle with -1 charge
- 12. Dangerous gas produced during incomplete combustion
- 13. Centre of the atom
- 15. Element symbol is Na
- 16. Chemical used to test for carbon dioxide
- 20. Sub-atomic particles with +1 charge
- 21. Gas needed for combustion
- 22. Shells surrounding the nucleus
Down
- 1. Element symbol is Zn
- 2. The scientific term for burning
- 4. Element symbol is C
- 5. Splint used to test for oxygen
- 6. Sub-atomic particle with no charge
- 7. Metal + Oxygen --> _______________
- 10. A substance containing 2 or more elements chemically joined together
- 11. Solid Carbon
- 14. Found on the periodic table
- 15. Makes a ringing sound when hit
- 17. What you start with in a chemical reaction
- 18. Can be stretched out into wires without breaking
- 19. Splint used to test for hydrogen