On the Modeling of the S-Shaped Thermodynamic and Transport Behavior against the Atomic Number Z of Some Trivalent f-Element Ions in Aqueous Solutions at 298 K and Prediction for Completion of the Periodic Table of Chemical Elements

摘要: Ionic self-diffusion coefficients D of some trivalent lanthanide and actinide ions have been determined by the open-end capillary method (O.E.C.M.) in supporting electrolyte 1 : 3 aqueous solutions at 25°C optimal pH 2.50 order to avoid hydrolysis, ion pairing complexing 4f ions. This study contributes demonstrate similarities transport structure properties between 5f explained a similar electronic configuration, ionic radius same hydration number. These are manifested strong causal correlation certain linear or S-shaped behaviors. In this context, we suggested expressions relating these interesting estimate predict, interpolation extrapolation methods, eventually not available experimental values, especially for actinides which half-life is very short conditions special expensive. For issue, can contribute complement periodic table elements physicochemical properties, 5f-series, when data on 4f‑series as well mathematical function two nf-series.