Chem Test Review Crossword

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Across
  1. 2. What is the chemical name for the formula CaO?
  2. 6. A chemical family where all of its elements have two valence electrons.
  3. 7. A group of atoms with similar properties
  4. 10. A chemical family where all of its elements have one valence electron.
  5. 11. Positive ions
  6. 12. Negative ions
  7. 14. When compounds are bonded together and share electrons to create a full outer shell.
Down
  1. 1. An element that has only one ion charge. They can be cations or anions.
  2. 2. Formula showing elements and their ratio.
  3. 3. Shows the arrangement of electrons in an atom. Drawn with a series of rings with electrons on the rings.
  4. 4. Fluorine belongs to this chemical family.
  5. 5. A law that states a specific compound always contains the same element in definite proportions.
  6. 8. An element that has more than one possible ion charge.
  7. 9. A group of atoms joined together in a compound. They are treated as a single element.
  8. 13. Argon belongs to this chemical family.