Across
- 3. a particle with a positive or negative charge
- 4. bond forms when atoms share one or more pairs of electrons
- 5. bond an interaction that holds atoms or ions together
- 7. electrons found in the outermost energy level
Down
- 1. bond forms between metal atoms when their outermost energy levels overlap
- 2. bond a force that brings oppositely charged ions together
- 6. a group of atoms held together by chemical bonds