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AP Chemistry Exam Prep

Category - AP Chemistry

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Which of the following elements is the most electronegative?

Cesium
Sodium
Lithium
Boron
Fluorine

Explanation

Answer: Fluorine

This question addresses periodic trends in electronegativity. Electronegativity increases going up a group and across a period from left to right. Therefore, fluorine is the most electronegative element. In fact, fluorine is the most electronegative element in the entire periodic table.

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