Question

How much energy would be required by an electron while moving from ground state to 3rd excited state of He+
(A) 40.8 ev
(B) 10.2 ev
(C) 51 ev
(D) 48.35 ev​

Answer 1

Answer:

Therefore, the energy of the electron in ground state is −13.6eV. Therefore, the energy required to move electrons from ground state to third excited state is 12.75eV. To ionize the atom means to completely remove the electron from the atom, i.e. move the electron to infinity