Among the halogens (Group 17 of the periodic table), which element has the highest electronegativity?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Fluorine
Electronegativity falls as we go down a group, because the atoms become larger. Fluorine, at the top of Group 17, is the smallest halogen and is the most electronegative element of the whole periodic table (4.0 on the Pauling scale).