KLL and LMM Auger peak intensity ratio dependence on bond ionicity

A study of the influence of element bond ionicity on ratios shows that a decrease of the ratios of the KL₂₃L₂₃ to KL₁L₂₃, L₂₃M₂₃M₂₃ to L₂₃M₁M₂₃, and L₂₃M₂₃M₂₃ to L₃M₂₃M₄₅ peak intensities occurs with an increase in the effective negative charge of the atom. These dependences are explained by decreasing spatial separation of the 2s and 2p, 3s and 3p, and 3p and 3d electrons. The decreasing spatial separation of the 2s and 2p and the 3p and 3d electrons with increase of the atom effective negative charge becomes less abrupt with increasing element atomic number.