An electron in the L shell “sees” an effective charge Z=13−1=12, because one electron in the K shell shields the nuclear charge. (Recall, two electrons are not in the K shell because the oth...An electron in the L shell “sees” an effective charge Z=13−1=12, because one electron in the K shell shields the nuclear charge. (Recall, two electrons are not in the K shell because the other electron state is vacant.) The frequency of the emitted photon can be estimated from the energy difference between the L and K shells.
Radiation is absorbed and emitted by atomic energy-level transitions. Quantum numbers can be used to estimate the energy, frequency, and wavelength of photons produced by atomic transitions. X-ray ph...Radiation is absorbed and emitted by atomic energy-level transitions. Quantum numbers can be used to estimate the energy, frequency, and wavelength of photons produced by atomic transitions. X-ray photons are produced when a vacancy in an inner shell of an atom is filled by an electron from the outer shell of the atom. The frequency of X-ray radiation is related to the atomic number Z of an atom.
