Calculate the wavelength (in nm) of a photon emitted by a hydrogen atom when its electron drops from the n = 5 state to the n = 2 state.
A、434.5nm
B、43.45nm
C、4.345nm
D、53.24nm
发布时间:2024-10-01 07:17:26
A、434.5nm
B、43.45nm
C、4.345nm
D、53.24nm