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

  • question_answer For principle quantum number \[n=4\] the total number of orbitals having \[l=3\]            [AIIMS 2004]

    A)                 3             

    B)                 7

    C)                 5

    D)                 9

    Correct Answer: B

    Solution :

               \[n=4\,\to 1{{s}^{2}},\,2{{s}^{2}},\,2{{p}^{6}},\,3{{s}^{2}},\,3{{p}^{6}},\,3{{d}^{10}},\,4{{s}^{2}},\,4{{p}^{6}},\,4{{d}^{10}},\,4{{f}^{14}}\]                 So \[l=(n-1)=4-1=3\] which is f orbit contain 7 orbital.


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