Chemistry

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Across
  1. 2. Made of one type of atom
  2. 3. group 7
  3. 5. two or more elements physically combined
  4. 6. the smallest part of an element that still has its properties
  5. 9. theses gases don't react
  6. 10. the appearance of group 1 metals when cut
  7. 12. danish scientist who discovered what an atom looks like
  8. 13. found in batteries
  9. 14. particles that can flow and take the shape of their container
  10. 16. small particle in the shell
  11. 18. particles that are very close together and don't have much energy
  12. 20. particles that can be compressed
  13. 21. the liquid you store group 1 metals in
  14. 23. two or more different atoms chemically combined
Down
  1. 1. the group 2 metals are called this
  2. 4. an alkali in bananas
  3. 5. changing from solid to liquid
  4. 7. this number tells you the number of protons and neutrons
  5. 8. changing a liquid to a solid
  6. 9. the centre of an atom
  7. 11. the path around the nucleus
  8. 15. A positive subatomic particle
  9. 17. slow change of state from liquid to gas
  10. 19. an alkali metal found in salt
  11. 22. changing gas to a liquid