Which element has the greatest electronegativity on the Pauling scale?

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The chemical element with the greatest electronegativity on the Pauling scale is fluorine.12

Electronegativity is defined as the ability of an atom to attract a shared pair of electrons within a chemical bond. Fluorine’s extreme electronegativity is a primary factor in its status as the most reactive of all chemical elements. In the periodic table, electronegativity generally increases toward the top right, making fluorine the most electronegative element and cesium (or francium) the least.213