Sub Project: Periodic Table Crossword

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Across
  1. 3. an element with the symbol "Ca"
  2. 6. an element with the symbol "Os"
  3. 7. an element with the symbol "Pt"
  4. 10. an element with the symbol "Li"
  5. 11. an element with the symbol "Ra"
  6. 15. an element with the symbol "Rh"
  7. 19. an element with the symbol "Rn"
  8. 22. an element with the symbol "Ce"
  9. 23. an element with the symbol "Ag"
  10. 24. an element with the symbol "I"
  11. 25. an element with the symbol "Fe"
Down
  1. 1. an element with the symbol "Th"
  2. 2. an element with the symbol "F"
  3. 4. an element with the symbol "Cu"
  4. 5. an element with the symbol "S"
  5. 8. an element with the symbol "Sn"
  6. 9. an element with the symbol "U"
  7. 12. an element with the symbol "C"
  8. 13. an element with the symbol "Ne"
  9. 14. an element with the symbol "N"
  10. 16. an element with the symbol "Zn"
  11. 17. an element with the symbol "Hg"
  12. 18. an element with the symbol "Al"
  13. 20. an element with the symbol "He"
  14. 21. an element with the symbol "Au"