Across
- 2. the weight of an element including its isotopes
- 4. the separation of electrical charges in a molecule
- 7. location of protons and neutrons in an atom
- 8. describes a molecule which does not dissolve in water because it is nonpolar
- 10. number of protons in an element
- 12. describes a polar molecule which dissolves in water
- 14. an atom that has lost electrons and has a positive charge
Down
- 1. a pure substance made up of only one type of atom
- 3. a subatomic particle with a positive charge
- 5. a subatomic particle with a negative charge
- 6. bonds that water forms between polar molecules
- 9. an atom with a positive or negative charge
- 11. a bone in which atoms take or donate electrons to other atoms
- 13. a bond in which atoms share electrons