Periodic elements

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Across
  1. 2. Is found in bananas
  2. 6. Earned for being First place
  3. 8. In the new iPhone
  4. 9. Has the greatest number of electrons
  5. 11. Makes your bones strong
  6. 12. Confused with graphite commonly
  7. 13. You pump ____ in the gym
  8. 18. Our atmosphere is made up mostly of ____
  9. 19. Found in hot springs
Down
  1. 1. Used for cans
  2. 3. We breath this
  3. 4. A planet
  4. 5. Very Poisonous
  5. 7. It makes your voice funny
  6. 10. Worth five cents
  7. 11. Turns green over time
  8. 14. A very bright and vibrant set of colors
  9. 15. Used to make pennies during late WWII
  10. 16. Almost Superman’s weakness
  11. 17. Salt