Elements of the Periodic Table

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Across
  1. 5. I'M USED IN COMPUTERS
  2. 7. I'M NAMES AFTER A COUNTRY
  3. 9. I'M IN TOAST
  4. 11. I'M USED IN STORE SIGNS TO TELL CUSTOMERS THEY ARE OPEN
  5. 12. YOU USE ME IN YOUR KITCHEN TO WRAP THINGS UP
  6. 15. I'M FOUND IN A POOL
  7. 17. MANY PEOPLE THINK I'M IN PENCILS BUT ITS NOT ME
  8. 18. I'M USED IN THE MEDICAL FIELD TO DIAGNOSE PROBLEMS IN YOUR THROAT
  9. 19. I'M USED AS A STAIN AND AN INDICATOR IN SCIENCE
  10. 21. THERE IS A CEREAL WITH MY SYMBOL IN ITS NAME
  11. 23. I'M FOUND IN TOOTHPASTE
Down
  1. 1. I'M NAMES AFTER A U.S. STATE
  2. 2. PENNIES WERE MADE OF ME
  3. 3. I'M WORTH A LOT
  4. 4. I'M USED IN LIGHT BULBS
  5. 6. A COIN IS MADE FROM ME
  6. 8. I'M FOUND IN BASEMENTS OF MANY OLD HOMES
  7. 10. I'M A YELLOW LIQUID AT ROOM TEMPERATURE
  8. 13. I USED TO BE USED IN THERMOMETERS
  9. 14. I CAN BE USED TO GENERATE POWER
  10. 15. YOU CAN FIND ME IN YOUR MOUTH
  11. 16. PEOPLE LIKE TO HAVE THEIR WEDDING RINGS MADE OF ME
  12. 20. I'M IN BALLOONS
  13. 22. DOROTHY'S FRIEND WAS MADE OF ME
  14. 24. YOU BREATH ME IN