Across
- 3. mixture in which components can be individually seen
- 6. mixture in which components are finely mixed and cannot be individually seen
- 9. material that consists of more than 1 element/compound
- 11. dense, positive charged center of an atom
- 13. mixture in which components dissolve into one another
- 14. negatively charged subatomic particle
- 15. represents objects on a smaller scale
- 17. vertical column on periodic table
- 18. material with one type of atom
- 20. chart with all known elements
Down
- 1. positively charged subatomic particle
- 2. small packet of energy
- 4. energy needed to pull an electron from an atom
- 5. has properties of metals and nonmetals
- 7. device that separates light into color components
- 8. electrically neutral subatomic particle
- 10. material that consists of only 1 element/compound
- 12. shiny, opaque, malleable element
- 16. represents how a system behaves
- 19. horizontal row on periodic table