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JEE Main & Advanced Chemistry Structure of Atom / परमाणु संरचना Question Bank Atomic number, Mass number Atomic species

  • question_answer
    The atomic number of an element having the valency shell electronic configuration \[4{{s}^{2}}4{{p}^{6}}\] is     [MP PMT 1991]

    A)                 35          

    B)                 36

    C)                 37          

    D)                 38

    Correct Answer: B

    Solution :

               Complete \[E.C.={{[Ar]}^{18}}3{{d}^{10}}4{{s}^{2}}4{{p}^{6}}.\]                 Hence no. of \[{{e}^{-}}=\] no. of  protons \[=36=Z\].


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