Periodic Table Crossword

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Across
  1. 6. The most abundant gas in the atmosphere.
  2. 8. I looked everywhere but they _____!
  3. 9. What does a doctor do to his patients?
  4. 10. This class is really _____.
  5. 11. This element has 16 electrons.
  6. 12. A police man
  7. 14. Element symbol is Li.
  8. 16. How do you plant beans?
  9. 17. This metal melts in your hand.
  10. 19. We breathe this to live.
Down
  1. 1. The lightest element.
  2. 2. Heaviest element.
  3. 3. Element with shortest name.
  4. 4. This elements symbol is C.
  5. 5. I'm a proud _________!
  6. 7. This element is found in your blood.
  7. 9. They gave him a full dozen he only wanted _______.
  8. 13. The farmer used this to walk his dog.
  9. 15. What is half of a dime?
  10. 18. First place runners get a ____ medal.