What is excitation energy ?

The ground state energy of hydrogen atom is - 13.6 eV. When electron is in excited state its excitation energy is ......

The ground state energy of hydrogen atom is -13.6eV. When its electron is in the first excited state, its excitation energy is

What is the value of first excitation energy of hydrogen atom ?

Calculate the first excitation energy of electron in the hydrogen atom.

A hydrogen-like atom in its first excited state has excitation energy of 91.8 eV. The energy required to remove the electron from its ion is:

What is meant by excitation energy?

Determine the energies of the first excited states of the electron in hydrogen atom. What are excitation energies of the electron in these orbits?