Across
- 6. elements with similar properties
- 8. the left side of a chemical word equation
- 9. chemical combinations
- 11. e.g. when a liquid turns a different colour
- 12. the non reactive gases on the periodic table
- 13. hazardous household product system
- 14. when a metal and a non metal combines
- 17. the amount of protons and electrons in an element
- 18. when a liquid turns into a gas
- 20. when a solid turns into a liquid
- 21. known for making the modern periodic table
- 22. in between metals and non metals
- 23. has one proton, one electron and no neutrons
- 24. e.g. Au is for gold
Down
- 1. the result of a chemical change
- 2. the average mass in an element
- 3. the most reactive metals on the periodic table
- 4. Everything that takes up space, and has mass.
- 5. when a gas turns into a solid
- 7. when the change is reversible
- 10. when a non metal and another non metal combines
- 15. made up of one type of matter
- 16. the result of a mixture, but can be separated
- 19. have lustre, is a solid,and can conduct electricity
- 22. when matter is mixed up with another. It’s the opposite of pure substances