The Periodic Table of Elements

1234567891011121314151617
Across
  1. 4. Period 5, Group 17
  2. 6. Period 6, Group 18
  3. 9. Period 4, Group 18
  4. 10. Period 5, Group 11
  5. 12. Period 3, Group 13
  6. 14. Period 4, Group 12
  7. 16. Period 6, Group 2
  8. 17. Period 1, Group 18
Down
  1. 1. Period 7, Group 1
  2. 2. Period 1, Group 1
  3. 3. Period 1, Group 13
  4. 5. Period 7, Group 2
  5. 7. Period 4, Group 17
  6. 8. Period 7, Group 1
  7. 11. Period 5, Group 14
  8. 13. Period 4, Group 8
  9. 15. Period 4, Group 9