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JEE Main & Advanced Chemistry Structure of Atom / परमाणु संरचना Question Bank Atomic models and Planck's quantum theory

  • question_answer
    The energy of electron in hydrogen atom in its grounds state is ?13.6 eV. The energy of the level corresponding to the quantum number equal to 5 is   [Pb. CET 2002]

    A)                 ?0.54 eV              

    B)                 ? 0.85 eV

    C)                 ? 0.64 eV             

    D)                 ? 0.40 eV

    Correct Answer: A

    Solution :

               Energy of ground stage \[({{E}_{0}})\] = \[-13.6eV\] and energy level = 5                                 \[{{E}_{5}}=\frac{-13.6}{{{n}^{2}}}eV=\frac{-13.6}{{{5}^{2}}}\] = \[\frac{-13.6}{25}=-0.54eV\].


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