periodic crossword

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Across
  1. 1. number of electrons that have been lost or gained
  2. 3. particle with a positive charge
  3. 5. these elements conduct electricity well
  4. 6. these elements are found right of the periodic staristep
  5. 8. when nonmetals bond with metals it has a _____ bond
  6. 9. nonmetals are ____ conductors
  7. 10. label on the periodic table is He
  8. 11. particle with a neutral charge
  9. 12. what element has the atomic number of 8
Down
  1. 2. label on the periodic table is H
  2. 4. nonmetals found in group 18 are _____ gases
  3. 5. when 2 metals combine it forms a ______ bond
  4. 7. when 2 nonmetals bond it is a ______ bond
  5. 10. group 17 on the periodic table is called what