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WB JEE Medical WB JEE Medical Solved Paper-2008

  • question_answer
    The          electronic          configuration \[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}},3{{s}^{2}}3{{p}^{6}}3{{d}^{9}}\]represents a

    A)  metal atom

    B)  non metal atom

    C)  non-metallic anion

    D)  metallic cation

    Correct Answer: D

    Solution :

                     Electronic    configuration    of    Cu    is \[1{{s}^{2}},2{{s}^{2}},2{{p}^{6}},3{{s}^{2}},3{{p}^{6}},4{{s}^{1}},3{{d}^{10}}\] and electronic configuration       of       \[\text{C}{{\text{u}}^{\text{2+}}}\]        is \[\text{1}{{\text{s}}^{2}},2{{s}^{2}}2{{p}^{6}},3{{s}^{2}}3{{p}^{6}}3{{d}^{9}}.\] Hence, the given configuration represents metallic cation.


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