The Periodic Table

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1234567891011121314151617181920
Across
  1. 3. on the staircase of the periodic table
  2. 4. Ni
  3. 6. Po
  4. 9. Si
  5. 10. Ne
  6. 11. Na
  7. 13. B
  8. 16. Ai
  9. 19. Sn
  10. 20. Ag
Down
  1. 1. H
  2. 2. Ti
  3. 5. Pt
  4. 7. Co
  5. 8. Au
  6. 12. Fi
  7. 14. Ra
  8. 15. Ga
  9. 17. Metals Located on the right of the periodic table
  10. 18. Located on the left of the periodic table