Elements Crossword

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Across
  1. 3. element number 6
  2. 4. element number 20
  3. 7. element number 2
  4. 10. element number 18
  5. 11. element number 19
  6. 13. element number 10
  7. 15. element number 12
  8. 17. element number 1
  9. 20. element number 17
  10. 21. element number 7
  11. 22. element number 22
  12. 24. element number 13
  13. 25. element number 15
Down
  1. 1. element number 4
  2. 2. element number 11
  3. 5. element number 14
  4. 6. element number 25
  5. 8. element number 3
  6. 9. element number 5
  7. 12. element number 16
  8. 14. element number 23
  9. 16. element number 21
  10. 18. element number 8
  11. 19. element number 24
  12. 23. element number 9