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NEET Chemistry The d-and f-Block Elements / d तथा f ब्लॉक के तत्व Question Bank Self Evaluation Test - The d-and f-Block Elements

  • question_answer
    The number of unpaired electrons in Gadolinium [Z=64] is

    A) 3                                 

    B) 8    

    C) 6                                 

    D) 2

    Correct Answer: B

    Solution :

    [b] \[Gd(64)=[Xe]4{{f}^{7}}5{{d}^{1}}6{{s}^{2}}\] \[\therefore \] No. of unpaired electrons = 8     


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