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Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2011

  • question_answer
    Which one of the following is the set of correct quantum numbers of an electron in 3d-orbital?

    A)  \[n=3,l=0,m=0,\,s=-1/2\]

    B)                  \[n=2,l=3,m=0,\,s=+1/2\]

    C)                  \[n=3,l=1,m=0,\,s=-1/2\]

    D)                  \[n=3,l=2,m=1,\,s=+1/2\]

    Correct Answer: D

    Solution :

    For 3d-orbital, \[n=3\] For d-orbital,     \[l=2\] and        \[m=-2,-1,0,+1,+2\]                 \[s=\pm \frac{1}{2}\] \[\therefore \] The correct set for 3d-orbital is                                 \[n=3,l=2,m=1,s=+\frac{1}{2}\]


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