`A` hydrogen-like atom has ground state binding energy `122.4eV`. Then :

A particular hydrogen like atom has its ground state Binding energy = 122.4 eV . It is in ground state. Then

A particular hydrogen like atom has its ground state Binding energy = 122.4 eV . It is in ground state. Then

A particular hydrogen like atom has its ground state Binding energy = 122 eV . It is in ground state. Then

The energy of a hydrogen like atom (or ion) in its ground state is -122.4 eV. It may be

The energy of a hydrogen like atom (or ion) in its ground state is -122.4 eV. It may be

A hydrogen atom is in a state of ionization energy 0.85 eV. If it makes a transition to the ground state, what is the energy of the emitted photon.

The energy of a hydrogen atom in the ground state is -13.6 eV. The energy of a He+ ion in the first excited state will be .....

The energy of a hydrogen atom in the ground state is -13.6 eV. The energy of a He^+ ion in the first excited state will be