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What Element Has the Lowest Electronegativity Value?

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Francium has the lowest electronegativity of any element.

This diagram of a francium atom shows the electron shell. Francium has the lowest electronegativity of any element.

Greg Robson,Creative Commonns License
Question: What Element Has the Lowest Electronegativity Value?
Electronegativity is a measure of an atom's ability to attract electrons to form a chemical bond. High electronegativity reflects a high capacity to bond electrons, while low electronegativity indicates low ability to attract electrons. Electronegativity increases moving from the bottom lefthand corner of the periodic table toward the upper righthand corner.
Answer: The element with the lowest electronegativity value is Francium, which has an electronegativity of 0.7. This value uses the Pauling scale to measure electronegativity. The Allen scale assigns the lowest electronegativity to Cesium, with a value of 0.659. Francium has an electronegativity of 0.67 on that scale.

Learn About Electronegativity

Most Electronegative Element
Electronegativity and Chemical Bonding
Electronegativity Periodic Table
Printable Electronegativity Periodic Table

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