Across
- 3. forms between metal atoms when their outermost energy levals overlap
- 4. group of atoms held together by chemical bonds
- 7. poor conductors of heat and electricity
- 9. positively or negatively charged particle
- 10. forms when atoms share one or more pairs of electrons
Down
- 1. abbreviation for an elements name
- 2. positively charged particle found in a nucleus
- 5. negatively charged subatomic particle
- 6. force that brings oppositely charged ions together
- 8. outermost level of electrons