Periodic Table

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Across
  1. 2. 9 on the periodic table
  2. 4. 20 on the periodic table
  3. 6. Fe on the periodic table
  4. 7. Ar on the periodic table
  5. 13. electrons Tell you what group number it is
  6. 15. K on the periodic table
  7. 18. vertical elements on the periodic table
  8. 19. Helium´s group.
  9. 20. metals The group numbers are in the middle.
Down
  1. 1. The first element on the periodic table
  2. 3. 5 on the periodic table
  3. 5. metals Hydrogen´s group
  4. 8. Horizontal elements on the periodic table
  5. 9. 13 on the periodic table
  6. 10. O on the periodic table
  7. 11. group 7
  8. 12. 3 on the periodic table
  9. 14. Things on the periodic table
  10. 16. 11 on the periodic table
  11. 17. 79 on the periodic table