Across
- 2. a mathematical relationship or rule expressed in symbols
- 7. my favorite teacher
- 8. mass of an atom
- 10. a substance that can no longer be broken down into smaller pieces
- 13. a subatomic particle of about the same mass as a proton but without an electric charge
- 16. a characteristic of a substance that may be observed when it participates in a chemical reaction
- 18. atoms bonded together
- 19. the smallest part of any atom
- 20. reaction where clouds or jelly or solid form
- 22. mixture is not the same
- 23. the minor component in a solution
Down
- 1. mixture is the same
- 3. what we end with
- 4. material does change
- 5. a stable subatomic particle with a charge of negative electricit
- 6. materials mixed together
- 9. material doesnt not change
- 11. a chemist who created the periodic table of elements
- 12. can be observed or measured without changing the composition of matter
- 14. a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions
- 15. able to dissolve in other substances
- 17. materials we start with
- 21. a stable subatomic particle occurring in all atomic nuclei