alleryMost electronegative element in periodic table:
AF (fluorine, 4.0 on Pauling scale)
BN
CO
DCl
Answer & Solution
Correct answer: A. F (fluorine, 4.0 on Pauling scale)
F is most electronegative (Pauling scale 4.0).
**Other high values:** O (3.5), N (3.0), Cl (3.0).
Decreasing across period? No — F highest.
Increases left to right, decreases top to bottom.
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