Which of the following is most electronegativ | vedclass

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(A) The correct answer is $A$. Electronegativity decreases down a group in the periodic table as the atomic size increases and the valence electrons a

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$O$

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(A) The correct answer is $A$. Electronegativity decreases down a group in the periodic table as the atomic size increases and the valence electrons are further from the nucleus. For Group $16$ elements,the electronegativity values are as follows:    Element Electronegativity   $O$ $3.5$   $S$ $2.5$   $Se$ $2.4$   $Te$ $2.1$   $Po$ $2.0$    Thus,$O$ (Oxygen) has the highest electronegativity.

Which of the following is most electronegative?

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