Periodic Table

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Across
  1. 3. One proton
  2. 8. Symbol is C
  3. 9. Symbol is Na
  4. 10. Has five protons
  5. 11. Used in Pennies
  6. 12. Another Word for NaCl
  7. 13. In milk
  8. 15. Used in drilling
  9. 16. Provides nutrients to your body
  10. 18. Used in explosives(aka Hiroshima)
  11. 20. Cleans Pools
  12. 21. Need to breath
  13. 22. Symbol is Na
Down
  1. 1. Another word for H2O
  2. 2. Used in lighting systems
  3. 4. Another word for CO2
  4. 5. Right of the stairs sine
  5. 6. In Bananas
  6. 7. Left of the stairs step line
  7. 14. Only Metal in liquid form at room temp
  8. 17. Treats bipolar disorder
  9. 19. Used in balloons