12th Class Chemistry The d-and f-Block Elements / d तथा f ब्लॉक के तत्व

  • question_answer 29)
    Compare the stability of +2 oxidation state for the elements of the first transition series.

    Answer:

    Except Sc, the most common oxidation state of the first transition series metals is +2. It is due to the participation of only two electrons of ns orbital in bond formation. Hence, 3d orbitals become more stable than 4s orbital after Sc.  


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