Across
- 3. 2882
- 4. changes during reaction
- 5. neutral charge
- 6. smallest unit
- 8. negative charge
- 10. amount of protons
- 11. positive charge
- 13. lacks characteristics of a metal
- 15. row of elements
- 16. electrons on the outside
- 19. two different elements combined
- 21. center
- 23. element letters
Down
- 1. smallest particle
- 2. thin coat of metal
- 5. gaseous element
- 7. chemical element
- 9. Russian chemist
- 11. formed by chemical reactions
- 12. column of elements
- 14. mass of object
- 17. absorbed
- 18. released
- 20. solid material
- 22. things in the periodic table