Across
- 2. A particle that creates a negative charge.
- 4. Anything that has mass and takes up space
- 7. A mixture that is not uniform throughout.
- 8. Two or more substances that are chemically combined.
- 9. A combination of two or more chemical substances that are not combined.
Down
- 1. A mixture that is uniform throughout.
- 2. A pure substance that is made of only one type of atom.
- 3. The center of an atom.
- 5. Basic unit of matter
- 6. A group of atoms bonded together.