Across
- 2. a substance made up of atoms of two or more different elements chemically combined
- 6. a pure substance made of one kind of atom
- 7. a group of the same atoms bonded together
Down
- 1. A mixture that is uniform in composition; components are evenly distributed throughout the mixture
- 3. Material composed of two or more elements or compounds that are physically combined but not chemically combined
- 4. A mixture that is not uniform in composition; components are not evenly distributed throughout the mixture
- 5. smallest unit of an element