Oh Chemistree!

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Across
  1. 3. electrons are in the outermost shell of an atom
  2. 8. able to be pressed into a flat sheet
  3. 9. popular Christmas movie with Will Ferrell
  4. 11. a row on the periodic table
  5. 12. subatomic particle with positive charge
  6. 13. family in group 18
  7. 14. striped hard candy stick, originally mint, now comes in all flavors
  8. 18. the reindeer with the shiny nose
  9. 19. Mariah Carey says "All I Want for Christmas is ___"
  10. 20. this number shows protons plus neutrons in an atom
Down
  1. 1. subatomic particle with negative charge
  2. 2. most reactive family of metals, found in group one
  3. 4. older song has these roasting over an open fire
  4. 5. able to be stretched into a long wire without breaking
  5. 6. subatomic particle with no charge (neutral)
  6. 7. this model shows all parts of an atom
  7. 10. the snowman that came to life one day
  8. 15. the center of an atom
  9. 16. this number shows how many protons an atom has
  10. 17. a column on the periodic table