Matter & elements

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Across
  1. 1. Atomic number 82
  2. 3. Atom spread out and fast
  3. 5. Atomic number 18
  4. 7. solid turning into a gas
  5. 9. Anything that takes up space
  6. 11. Atom tight together
  7. 12. Gas changing into a liquid
  8. 13. Atomic number 78
  9. 15. Solid changing to a liquid
  10. 16. Gas turning into a solid
Down
  1. 2. liquid turning into a gas
  2. 4. Atomic number 84
  3. 6. Liquid turning into a solid
  4. 8. Atomic number 26
  5. 10. Atom a bit spread out
  6. 14. Atomic number 79