Across
- 2. a subatomic particle that has no charge
- 6. the name of the group 1 metals
- 8. 2 or more different elements chemically bonded
- 10. a gas that turns limewater cloudy
- 12. the location of protons and neutrons
- 13. the salt made with Sulphuric acid
- 14. a metal with the symbol Na
- 17. a pure substance made of only 1 type of atom
- 19. elements that are dull and brittle
- 20. the salt made with hydrochloric acid
Down
- 1. this type of metal reacts with an acid and produces carbon dioxide
- 3. what non metal produces a sulphide compound in a reaction
- 4. the acid needed to make a nitrate salt
- 5. the name of the group 7 non metals
- 7. what non metal produces an iodide in a reaction
- 9. a positively charged subatomic particle
- 11. the charge on an electron
- 15. the element with a symbol 'K'
- 16. a gas that makes a squeaky pop
- 18. elements that are shiny, sonorous, a good conductors