PERIODIC TABLE CROSSWORD

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Across
  1. 2. this can treat cancer but it can also kill you
  2. 5. melts at 420 degrees celcius
  3. 9. most reflective metal
  4. 10. twice as strong as the other metal aluminum
  5. 11. can bond with itself and many other chemical elements
  6. 12. only element names after a state
  7. 13. we put this substance in pools
  8. 15. their atoms are so light they can escape gravity
  9. 17. only yellowish metal
  10. 18. most plentiful atom in the universe
  11. 20. only metal that is liquid at room temperature
Down
  1. 1. we get most of this element from milk
  2. 3. most isotopes of any element due to it's atomic number
  3. 4. named after the word "bary" which in Greek means "heavy"
  4. 6. we LOVE bananas
  5. 7. highest melting point tof all metals
  6. 8. odorless and tasteless
  7. 14. one of the first metals discovered by humans
  8. 16. 8th most abundant element on earth
  9. 19. 2/3's of the mass of the human body