Across
- 1. an ion that has a positive charge
- 5. electrons in the outer energy level
- 7. an ion that has a negative charge
- 8. The tendency for atoms to want to have a full outer electron shell
- 9. a very strong bond held together by positive and negative charges
Down
- 1. the regular pattern in which a crystal is arranged
- 2. an ionic compound that forms when a positive atom replaces the hydrogen of an acid
- 3. the smallest portion of crystal lattice that shows the molecular pattern
- 4. an ion made from two or more atoms
- 6. the energy needed in constructing a crystal lattice structure
- 10. an atom or molecuel that has gained or lost one or more electrons and has a negative or positive charge