Periodic table

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Across
  1. 3. 16oxygen
  2. 4. 4 titanium
  3. 5. 1 hydrogen
  4. 6. 11coper
  5. 7. 6 chromium
  6. 8. 10nicckel
  7. 9. 8 iron
  8. 10. 12zinc
  9. 11. 3 yttrium
Down
  1. 1. 13boron
  2. 2. 2 berillium
  3. 3. 17fluorine
  4. 4. 5 vanadium
  5. 5. 9 cobalt
  6. 6. 18argon
  7. 7. 7 technetium
  8. 8. 15nitroen
  9. 10. 14carbon