Periodic Table

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Across
  1. 4. Temperature which turns a liquid into a solid
  2. 5. What elements make up
  3. 6. The ratio of the average mass of atoms of an element
  4. 7. Temperature which turns a liquid into a gas
  5. 10. title of substance
  6. 13. Vertical columns in the Periodic Table
  7. 15. What makes up matter
  8. 17. Has more than one type of molecule
  9. 18. How many groups are in the Periodic Table?
  10. 20. How many periods are there in the Periodic Table?
Down
  1. 1. First element in Periodic Table
  2. 2. Chart of the elements
  3. 3. Has one or more of the same type of molecules
  4. 8. Horizontal rows in the Periodic Table
  5. 9. Number of protons and Neutrons
  6. 11. Temperature which turns a solid into a liquid
  7. 12. The number of protons in an atom
  8. 14. Shortened version of the element’s name
  9. 16. How tightly packed something is
  10. 19. Symbol is Au