Orbital Feature Identification of Chemical Bonding of f Electrons in Rare Earth Inorganic Materials

摘要

Toward understanding why and how f electrons can be involved in chemical bonding formation, the geometric features of s, f, d, and p orbitals has been comprehensively studied within the frame of Element Periodic Table. Upon the detailed geometry description of all these s, f, d, and p orbitals, it can be concluded that the valence electron in these s, f, d, and p orbitals Element Periodic Table follows the opening tendency, p, d, f, s, which warrants the easily binding tendency from p to s. According to the geometric feature of f orbitals and the ionic electronegativity scale of lanthanide elements, we can see that f orbitals possess the bonding ability between s and d orbitals, which brings us quite ionic bonds, f electrons can be shared with more bonded anions in compounds.