Question

What were the principal quantum numbers of the initial and intermediate excited states involved?

An electron in an excited state of a hydrogen atom emits two photons in succession, the first at 4651 nm and the second at 94.92 nm, to return to the ground state (n=1). For a given transition, the wavelength of the emitted photon corresponds to the difference in energy between the two energy levels.

What were the principal quantum numbers of the initial and intermediate excited states involved?

(Enter the number of the higher atomic orbital in the first answer box.)

如何计算

？ initial excited state

？ intermediate excited state

Answer 1

？

追问

？什么意思？