Question

Which of the following atoms is the most electronegative?

• A. O
• B. F
• C. N
• D. Cl

Answer 1

Answer: (B)

Ability of an atom to attract the shared pair of electrons towards itself, is called electronegativity.
Fluorine $(F)$ has highest electronegativity among the given species.
Due to small size and seven electrons in its outermost shell, it shows highest electronegativity.
At pulling scale, it is considered as $\mathrm{4.0.}$