[en] Study on radiation spectral composition and spatial distribution under bombarding beryllium by Ar⁺ and H₂⁺ (20 keV) ions is carried out. The quantum yield and rate composition of sputtered and scattered excited particles are measured. Analysis of the obtained results from the viewpoint of impact of non-radiating resonance processes on the probability of maintaining the excitation by the particles take-off from the beryllium surface is performed. The passivating role of nitrogen through bombarding the beryllium surface by Ar⁺ ions in the nitrogen atmosphere is shown