# Which of the following elements' atom has the greatest ability to attract electrons?

$(a)\;\text{silicon} \\(b)\;\text{sulfur} \\(c)\;\text{nitrogen} \\ (d)\;\text{chlorine}$

Electronegativity is a measure of the ability of an atom to attract electrons.
The greater the ability to attract, the higher the electronegativity.
Chlorine has the highest electronegativity of the choices given.
Hence d is the correct answer.