CET Karnataka Medical CET - Karnataka Medical Solved Paper-2009

  • question_answer
    The correct set of four quantum numbers for outermost electron of potassium \[(Z=19)\] is

    A)  \[4,1,0,\frac{1}{2}\]

    B)  \[3,1,0,\frac{1}{2}\]

    C)  \[4,0,0,\frac{1}{2}\]

    D)  \[3,0,0,\frac{1}{2}\]

    Correct Answer: C

    Solution :

    \[K(19):1{{s}^{2}},2{{s}^{2}}2{{p}^{6}},3{{s}^{2}}3{{p}^{6}},4{{s}^{1}}\] \[4{{s}^{1}}\]is the valence electron in potassium, hence the correct set of four quantum numbers for outermost electron is \[4,0,0,\frac{1}{2}\].


You need to login to perform this action.
You will be redirected in 3 sec spinner