JEE Main & Advanced JEE Main Paper (Held On 26 May 2012)

  • question_answer
    The number of unpaired electrons in Gadolinium\[[Z=64]\]is.   JEE Main Online Paper (Held On 26-May-2012)  

    A)  3                                            

    B)                        8

    C)                         6                                            

    D)                        2

    Correct Answer: B

    Solution :

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


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