Across
- 1. negative charge
- 7. in pencils
- 10. ______ foil
- 12. 7 valence electrons in the 3rd period
- 15. number 69
- 16. found in bananas
- 17. mass of 10.8
- 18. makes balloons float
- 19. ___ man from the Wizard of Oz
Down
- 2. in milk
- 3. we breathe it in
- 4. salt
- 5. neutral charge
- 6. named after a state
- 8. center of an atom
- 9. liquid at room temperature
- 11. a plant and chemical symbol Hg
- 12. we breathe it out
- 13. the statue of liberty is made of this
- 14. positive charge