Across
- 2. the seventy-eighth element of the periodic table
- 3. the sixth element of the periodic table
- 4. the last element of the periodic table
- 9. the twenty-ninth element of the periodic table
- 11. the seventy-ninth element of the periodic table
- 12. the first element of the periodic table
- 13. the eighty-seventh element of the periodic table
- 14. the twelfth element of the periodic table
- 16. the nineteenth element of the periodic table
- 19. the eighty-second element of the periodic table
- 20. the second element of the periodic table
- 21. the thirty-sixth element of the periodic table
- 22. the seventy-sixth element of the periodic table
- 24. the thirteenth element of the periodic table
Down
- 1. the ninth element of the periodic table
- 5. the sixteenth element of the periodic table
- 6. the element required to breath
- 7. the twenty-sixth element of the periodic table
- 8. the third element of the periodic table
- 9. the twentieth element of the periodic table
- 10. the eighty-eighth element of the periodic table
- 15. the ninety-ninth element of the periodic table
- 17. the seventy-third element of the periodic table
- 18. the fifteenth element of the periodic table
- 23. the eleventh element of the periodic table