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

  • question_answer
    Which of the following has the maximum number of unpaired electrons                                               [IIT 1996]

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

    B)                 \[T{{i}^{3+}}\]

    C)                 \[{{V}^{3+}}\]

    D)                 \[F{{e}^{2+}}\]

    Correct Answer: D

    Solution :

                    \[F{{e}^{2+}}\]has \[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}},3{{s}^{2}}3{{p}^{6}}3{{d}^{6}}\] configuration with 4 unpaired electron.

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