The Periodic Table

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Across
  1. 3. elements that are good conductors
  2. 4. English chemist
  3. 6. atom(s) with a positive or negative charge
  4. 8. ability of atoms to attract electrons
  5. 10. extremely unreactive
  6. 11. German chemist
  7. 12. periods
  8. 13. columns
Down
  1. 1. rule for 8 electrons
  2. 2. atomic radii does this from left to right
  3. 3. Russian chemist
  4. 5. group 17
  5. 7. properties of metals and nonmetals
  6. 9. elements in groups 3 to 12