Abstract
The average electronegativity is a parameter defined in terms of the electronegativity of the elements and the chemical composition of the compounds. It has been introduced to study the chemical trends of the materials. Previous studies have revealed that the average electronegativity provides an easy and powerful mean to classify and understand many basic properties of materials. In the present report, a brief review on the application of average electronegativity is given. Topics such as ionic conductivity, network expansion, sound velocity and medium range structure in superionic glasses, superconductivity, glass forming ability, correlation with fragility, among other properties are covered. All these examples indicate that the average electronegativity provides a method to predict materials properties from chemical formula of the compounds. Limitations and further extension of the model is mentioned briefly. Keywords: Average electronegativity, Superionic glasses, Ionic conductors, Superconductors.
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