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