As a result of absorption of a photon by an electron in a hydrogen atom, the electron left the atom. What is the minimum

As a result of absorption of a photon by an electron in a hydrogen atom, the electron left the atom. What is the minimum photon energy if the atom was in the ground state?

In order for the electron to leave the atom, it must be given a minimum energy equal to the ionization energy, i.e. 13.6 eV, which means. the minimum photon energy should be 13.6 eV.

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