Whenever a hydrogen atom emits a photon in the Balmer series

Last updated: 6/14/2023

Whenever a hydrogen atom emits a photon in the Balmer series 1 It may emit another photon in the Balmer series 2 It must emit another photon in the Lyman series 3 It may emit another photon in the Paschen series 4 It need not emit any more photon