Periodic table

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Across
  1. 3. : are good sources of heat and electricity
  2. 8. : Nonmetals are generally not
  3. 9. : Metallic elements are typically
  4. 10. : Number : On a square, above the chemical symbol
  5. 13. : the most powerful tool in chemical information
  6. 14. : One or two letter chemical
  7. 15. : You can find them on the
  8. 16. : Each element is represented by one
  9. 17. : Each element has a unique number of
  10. 18. : What makes a periodic table really invaluable
Down
  1. 1. : Nonmetals are generally not good_____ of heat or electricity
  2. 2. : It is found on the upper right of the periodic table
  3. 4. : You can predict a lot about the chemical
  4. 5. : This is in between Metal and Nonmetal
  5. 6. : Atoms are listed in order of increasing
  6. 7. : It is found on the upper left of the periodic table
  7. 11. : Most elements are
  8. 12. :The 7 horizontal rows is called.