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Which is the second most electronegative element in the periodic table?

1. O
2. F
3. N
4. Cl

Correct answer: O

Solution

On the Pauling electronegativity scale: F = 3.98, O = 3.44, Cl = 3.16, N = 3.04. Fluorine is the most electronegative, and oxygen is the second most electronegative element.

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