Question

Which of the following statement(s) is/are true?

an electron in a hydrogen atom is excited from the ground state to the n=4 state

(a) n=4 is the first excited state.

(b) It takes more energy to ionize (remove) the electron from n=4 than from the ground state.

(c) The electron is farther from the nucleus (on average) in n=4 than in the ground state.

(d) The wavelength of light emitted when the electron drops from n=4 to n=1 is longer than that from n=4 to n=2.

(e) The wavelength the atom absorbs in going from n=1 to n=4 is the same as that emitted as it goes from n=4 to n=1.