Chemistry 3

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