M17 Element properties

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Across
  1. 5. type of bonding in which a "sea of electrons" surrounds positively charged ions
  2. 8. molecule that consists of two atoms of the same element
  3. 9. different forms of the same element with different molecular structures
  4. 11. state of all elements in Group 18
  5. 14. substance that conducts electricity under certain conditions
  6. 16. name of Group 1 metal
  7. 17. forms a salt when it gains an electron from a metal
  8. 18. state of most metals at room temperature
Down
  1. 1. element with more than 92 protons
  2. 2. not naturally occurring
  3. 3. element with metallic and nonmetallic properties
  4. 4. able to be drawn into a wire
  5. 6. elements that give off particles and energy
  6. 7. Elements in Group 2 are alkaline ____ metals
  7. 10. elements in Groups 3-12
  8. 12. gases with full outer energy levels
  9. 13. Halogens form salts by ____ bonding.
  10. 15. able to be hammered or rolled into sheets