Across
- 3. A reaction that makes a substance change properties
- 6. Uses particle size to seperate componets
- 7. A negatively charged subatomic particle
- 10. formed by two or more different atoms
- 11. The distance between the same points on two waves
- 14. A type of pure substance that only has one atom
- 16. The percentages that describe isotopic compositions
- 18. Formed from two or more pure substances
- 19. It maintains its shape and volume
- 20. Doesn't have uniform compositions
Down
- 1. The amount of protons in a atom
- 2. the percentages that describe isotopic compositions
- 4. A change you can see
- 5. A group of atoms with a fixed composition
- 8. A property of matter that is quanity dependent
- 9. Uses boiling points to seperate componets
- 12. An electron in an atoms highest energy level
- 13. The sum of the number of neutrons and protons in an isotope
- 15. An atom change due to different amounts of protons and electrons
- 17. A stream of electrons that emanate from a negative conducter