The Energy Needed To Ionize The Hydrogen Atom In The First Excited State Is 3.4 eV. What Is The Ionization Potential Of Hydrogen In The Ground State?

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Question

The energy needed to ionize the hydrogen atom in the first excited state is 3.4 eV. What is the ionization potential of hydrogen in the ground state?

easy

Solution

Correct option is

13.6 V

Let E be the ionization energy of the hydrogen atom. Now for the first excited state n = 2.

Therefore,

= 13.6 eV.

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