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In 2022, Russian scientist Artem Oganov proposed a new approach to a fundamental concept in chemistry: electronegativity. It describes the most important characteristic of atoms that determines the type and properties of chemical bonds. Electronegativity was discovered more than 200 years ago, and the formula and scale of electronegativity of elements by American chemist L. Pauling are considered the “gold standard” in this field. However, the discovery by a professor from Skoltech may mark a new stage in the development of science. The innovator himself talks about how and why to rethink the classical concept in this issue of “Question of Science”. #semikhatov #chemistry #atom #scientist #science