The objective of the presented study was to investigate the adsorption of Cu, Co, Mn, Zn, Cd and Mn on A-type zeolite. The isotherms for adsorption of metals from their nitrates were registered. The following adsorption constants K of metals were found: 162,890, 124,260, 69,025, 16,035, 10,254, and 151 [M −1] for Cu, Co, Mn, Zn, Cd, and Ni, respectively, for the concentration range 10 −4–10 −3 M. On the other hand, the investigation of pH influence on the distribution constants of metals showed that the adsorption of metals proceeds essentially through an ion-exchange process, surface hydrolysis, and surface complexation. The supplementary results from DRIFT, scanning electron microscopy, and X-ray diffraction methods confirmed the presumption about the possible connection between the electronic structure of divalent ions and their adsorption behavior, showing that ions with d 5 and d 10 configurations such as Mn 2+, Zn 2+, Cd 2+, with much weaker hydrolytic properties than Cu 2+ and Ni 2+, strongly interact with the zeolite framework and therefore their affinity to the zeolite phase is much stronger when compared with that of the Ni 2+ ion, but at the same time not as strong as the affinity of the Cu 2+ ion, the latter forming a new phase during the interaction with zeolite framework. For Zn 2+, during inspection of the correlation between the proton concentration H/Al and zinc concentration Zn/Al on the zeolite surface, the formation of the surface complex SOZn(OH) was proposed. A correlation between the heterogeneity of proton concentrations H/Al on Me–zeolite surfaces and the hydrolysis constants p K h of Me 2+ ions was found.