Across
- 4. Substance that is made of one type of atom
- 5. a mixture that is not evenly mixed
- 9. A small particle
- 10. Can be separated by physical methods like
- 11. Matter that can vary in composition
- 12. Make up the other part of the nucleus
- 14. Number of protons in boron
- 15. These atoms in air always exist in pairs
- 16. Make up part of the nucleus
- 18. Boron is a ----------
Down
- 1. substance that has two or more elements bonded
- 2. help explain how atoms combine
- 3. mixture that is evenly mixed
- 6. The composition is always the same
- 7. This drink is a mixture
- 8. Has mass and takes up space
- 11. The amount of ways atoms can combine
- 13. Carbon Dioxide's two
- 17. form a solution by mixing evenly
- 19. Example of a nonmetal