Across
- 4. atoms bond together
- 7. what we start with
- 10. you can experience it with your five senses
- 12. basic unit of chemical element
- 13. founded the first periodic table
- 14. negative particle
- 15. mixture is the same
- 17. Chemicals in specific amounts
- 19. reaction where clouds
- 20. A part thats abstract
Down
- 1. material does not change
- 2. abbrevation for a chemical element
- 3. two substances mixed together
- 5. can't be experienced with the five senses
- 6. Number of protons in the nucleus of an atom
- 8. What we end with
- 9. material changes
- 11. positive particle
- 16. the mass of an atom
- 18. its not positive or negative