Periodic Table Review

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Across
  1. 3. electrons not responsible for chemical properties
  2. 6. Atom that is an exception to the octet rule; is stable with only 2 valence electrons
  3. 7. energy needed to remove an electron from an atom
  4. 10. positive ions
  5. 11. electrons in the outermost energy level
  6. 12. gaining electrons creates this charge
  7. 15. best conductors of heat/electricity
  8. 16. form +2 ions
Down
  1. 1. Group of extremely reactive nonmetals
  2. 2. group of elements that do not react to form compounds
  3. 4. ability of an atom to gain extra electrons for bonding
  4. 5. losing electrons creates this charge
  5. 7. atoms with a charge
  6. 8. negative ions
  7. 9. have properties of both conductors and nonconductors
  8. 13. Group of extremely reactive metals
  9. 14. distance from the nucleus to the furthest electrons