Across
- 2. is a type of substance containing atoms of two or more different elements chemically bonded together
- 6. the combination of symbols and numbers that represent compound
- 8. a type of mixture in which the individual substances are not evenly mixed
- 13. is a matter with a composition that is always the same
- 15. matter that can vary in composition
- 16. a type of mixture in with the individual substances are evenly mixed
- 18. is a compound composed of carbon and oxygen atoms
- 19. a small particle that's a building block of matter'
- 20. to form a solution by mixing evenly
Down
- 1. has 5 protons
- 3. has 8 protons
- 4. Think again about the elements carbon and oxygen
- 5. make up neutrons
- 7. are between metals and nonmetals
- 9. is a substance that consists of just one type of atom
- 10. Anything that has mass and takes up space
- 11. The atoms of elements exist in what groups
- 12. elements consist of only one type of atom
- 14. are right on the periodic table
- 17. is always made-up type of atoms