Unit 3

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Across
  1. 2. Electrons are shared equally by bonded atoms; balanced charge
  2. 4. a naming system
  3. 5. Outermost valence shell needs 8 electrons for stability
  4. 6. Charged group of covalently bonded atoms
  5. 8. Number/Number assigned to the charge of an ion in building compounds
  6. 9. When electrons are shared between 2 nonmetals
  7. 10. When electrons are transferred between a metal and nonmetal
  8. 12. Uses Roman numeral to indicate ion's charge
  9. 13. Delocalized electrons move freely among positively charged ions
  10. 14. only valence electrons of an element are placed around the element symbol
Down
  1. 1. readily evaporates into a gas
  2. 3. Bonded atoms have an unequal attraction for shared electrons; unbalanced charge
  3. 7. Octet Rule
  4. 11. valence shell needs 8 electrons for stability