Across
- 2. abbreviation of element
- 8. outermost electron in shell
- 11. what's reacted upon
- 12. coating
- 16. smallest particle in a chemical element
- 17. column on the P.T
- 20. created periodic table
- 23. mass of an atomic particle
- 24. two or more elements combined
- 25. the result of a chemical reaction
- 26. energy given off
Down
- 1. smallest part of a substance
- 3. energy cannot be created or destroyed
- 4. mixture of metal and nonmetal
- 5. neutral charge
- 6. negative charge
- 7. one ring in a shell
- 9. odorless colorless low chemical reactivity
- 10. a substance that cannot be broken down
- 13. number of electrons
- 14. energy absorbed
- 15. center of atom
- 18. positively charged
- 19. rows on the P.T
- 21. hard, shiny, opaque, conductive
- 22. not conductive, brittle