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

  • question_answer Which of the following sets of quantum numbers is correct for an electron in \[4f\] orbital           [AIEEE 2004]

    A)                 \[n=4,\,l=3,\,m=+1,\,s=+\frac{1}{2}\]

    B)                 \[n=4,\,l=4,\,m=-4,\,s=-\frac{1}{2}\]

    C)                 \[n=4,\,l=3,\,m=+4,\,s=+\frac{1}{2}\]

    D)                 \[n=3,\,l=2,\,m=-2,\,s=+\frac{1}{2}\]

    Correct Answer: A

    Solution :

               For 4f orbital electron, \[n=4\]                    \[l=3\] (Because 0, 1, 2, 3)                                              s, p, d, f                    m = + 3, + 2, +1, 0, ? 1, ? 2, ? 3                                 s =  +1/2

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