Periodic Table

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Across
  1. 4. a colorless, odorless, highly flammable gas, the chemical element of atomic number 1.
  2. 6. nonmetal with atomic number of 9
  3. 9. coke cans are made of....
  4. 12. David guetta sang a song about this
  5. 13. atomic number of 3
  6. 15. When you suck it out of something your voice gets really high
  7. 17. take the -ite out of superman's weakness
  8. 18. 2nd place wins a _____ medal and 1st gets a gold medal
  9. 20. they have a ____ green,yellow.
Down
  1. 1. non-metal atomic number is 6
  2. 2. atomic number of four
  3. 3. an element in a fire extinguisher
  4. 5. metalliod with an atomic number of 5.
  5. 7. a chemical element with symbol Ca and atomic number 20.
  6. 8. salt
  7. 10. can freeze lots on things
  8. 11. you breathe this
  9. 14. 5 pennies equal 1 ______
  10. 16. pennies are made of _____
  11. 19. a liquid and a solid with the symbol of Fe