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

  • question_answer
    Which of the following ions is not having the configuration of neon

    A)                 \[{{F}^{-}}\]       

    B)                 \[M{{g}^{+2}}\]

    C)                 \[N{{a}^{+}}\]   

    D)                 \[C{{l}^{-}}\]

    Correct Answer: D

    Solution :

               Configuration of  \[Ne\] = \[1{{s}^{2}}\,2{{s}^{2}}2{{p}^{6}}\]                                               \[{{F}^{-}}\]  = \[1{{s}^{2}}\,2{{s}^{2}}2{{p}^{6}}\]                                              \[N{{a}^{+}}\] = \[1{{s}^{2}}\,2{{s}^{2}}2{{p}^{6}}\]                                             \[M{{g}^{++}}\]= \[1{{s}^{2}}\,2{{s}^{2}}2{{p}^{6}}\]                                 \[C{{l}^{-}}\] = \[1{{s}^{2}}\,2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}\].


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