Periodic Table

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Across
  1. 1. Symbol Zn
  2. 3. Atomic mass of 108.
  3. 5. Makes a penny
  4. 10. Makes other change besides penny's.
  5. 11. Critical strategic metal.
  6. 12. Fills up balloons.
  7. 14. Number one on the periodic table.
  8. 15. The symbol Yb.
  9. 16. Used to make foil.
  10. 17. A gas that lights up the sun.
  11. 18. Used for wide variety of household products.
  12. 19. What people breath everyday.
Down
  1. 2. It's main state is cold.
  2. 4. Used in several different things.
  3. 6. Used in soda.
  4. 7. Made from steel.
  5. 8. Worth a lot of money.
  6. 9. Found mostly in bananas.
  7. 13. Used as a laxative for constipation.
  8. 16. Used in smoke detectors.