JEE Main & Advanced Chemistry Structure of Atom Question Bank Quantum number, Electronic configuration and Shape of orbitals

  • question_answer Azimuthal quantum number for last electron of \[Na\] atom is [BHU 1995]

    A)                 1             

    B)                 2

    C)                 3             

    D)                 0

    Correct Answer: D

    Solution :

               \[N{{a}_{11}}=1{{s}^{2}}2{{s}^{2}}{{p}^{6}}3{{s}^{2}}\]                                 \[n=3,\,l=0,\,m=0\] and \[s=+\frac{1}{2}.\]

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