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