Which is the most electronegative atom amongst the following?

Fluorine

The correct answer is option 2. Fluorine.

The most electronegative atom among the following is: Fluorine.

Electronegativity is a measure of an atom's ability to attract shared electrons in a chemical bond. Fluorine (F) is the most electronegative element in the periodic table. The electronegativity of an element generally increases as you move from left to right across a period and decreases as you move down a group in the periodic table. Oxygen (O) is highly electronegative but slightly less electronegative than fluorine. Nitrogen (N) and chlorine (Cl) are also electronegative, but fluorine surpasses them in electronegativity, making it the most electronegative atom among the options provided.