Which is the element in periodic table having highest electronegativity?

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Fluorine (F) is the element in the periodic table with the highest electronegativity. Its electronegativity value is 3.98 on the Pauling scale, which is the most commonly used scale for expressing electronegativity. Fluorine's high electronegativity arises from its small atomic radius, strong nuclear charge, and high electron affinity, which allow it to attract electrons strongly towards itself when it forms a chemical bond with other elements.
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