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Is a molecule with a higher electronegativity more polar than a molecule with a lower electronegativity?

April 26, 2017Chemistry electronegativity lower Mathematics molecule polar

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Is a molecule with a higher electronegativity more polar than a molecule with a lower electronegativity?

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A molecule with a higher CHANGE IN electronegativity is more polar than a molecule with a lower CHANGE IN electronegativity. For example, Fluorine is more electronegative than Oxygen. Let’s say you have the compounds HF and H2O. HF is more polar than H2O because the change in electronegativity between Fluorine and Hydrogen is GREATER than the change in electronegativity between Oxygen and Hydrogen.