Some elements with high electronegativity exhibit metallic properties
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Peer-reviewed literature demonstrates that certain transition metal oxides featuring strong electronegativity exhibit metallic and semiconductor electronic behaviors.
An original analysis of the electronic and chemical properties of oxides is proposed based on the electronegativity χ and the chemical hardness η. This model which has been applied to various oxide based metals, degenerate semiconductors and optical properties of transition metal oxides allows explaining their electronic behaviors: Strong electronegativity and weak chemical hardness characterize oxides of transition elements with high oxidation state. Strong electronegativity and strong chemical hardness feature insulators with a large optical gap. Weak electronegativity and moderate chemical