1- The wavelength of a laser pointer is reported to be 500nm. What is the frequency of this light?
2- If ml has values of (0) and (-1, 0, +1). write the corresponding value of n and l.
3- Which atomic orbitals has values of n = 4 and l = 2?
4- Calculate the wavelength (in nm) of a photon emitted by a hydrogen atom when its electron drops from the n = 4 state to the n = 2 state.
5- Calculate the wavelength in nm for the 4th line in Paschen series?