Across
- 3. changes shape to fit the container it is kept in
- 5. proton carries a charge
- 6. two or more elements or compounds not chemically combined
- 8. atoms make up all
Down
- 1. move around the nucleus
- 2. centre of an atom
- 4. a pure substance containing two or more kinds of atoms
- 6. conduct electricity
- 7. a pure substance containing only one kind of atom