Ion Crossword

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Across
  1. 1. An atom with an imbalanced number of protons and electrons
  2. 2. The charge that results when two oppositely charged Ions form a bond
  3. 6. The number of electrons the Halogen group needs to complete its outer shell
  4. 7. The group name on the periodic table that corresponds to the number 7
  5. 8. The charge resulting from a GAIN in electrons
Down
  1. 1. Two atoms with the same number of protons and different number of neutrons
  2. 3. The group on the periodic table that has one electron in its outer shell
  3. 4. The charge resulting from a LOSS of negativity (loss of an electron)
  4. 5. What we call inert or 'unreactive' gases
  5. 9. The number of electrons Calcium needs to lose for it to have a full outer shell