Across
- 3. a state of matter; very slow moving particles
- 6. a thing that consists of more than one element
- 7. A physical property
- 9. the basic unit of a chemical element
- 10. Subatomic particle with positive charge
Down
- 1. a state of matter; somewhat fast moving particles
- 2. form of matter in which the electrons wander freely among the nucleus of the atom
- 4. Subatomic particle with negative charge
- 5. Subatomic particle with neutral charge
- 8. a state of matter; very fast moving particles