Ionic bonds

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Across
  1. 4. negatively charged particle
  2. 8. positively charged particle
  3. 9. how the ions form
  4. 11. most of the periodic table, forms cations
  5. 12. outer shell
  6. 13. charged particle
Down
  1. 1. total charge of an ionic compound
  2. 2. number of chlorine atoms in aluminum chloride
  3. 3. force between positive and negative
  4. 5. elements to the right that form anions
  5. 6. NaCl
  6. 7. attraction between two atoms
  7. 8. type of solid formed by ionic compounds
  8. 10. number of iron atoms in iron (III) oxide