Which of the following elements has the highest electronegativity value on the Pauling scale?
Answer and explanation
Correct answer: B. Fluorine (F)
- Step 1: Electronegativity increases across a period from left to right and decreases down a group.
- Step 2: Fluorine (F), situated in Group 17, Period 2, possesses the smallest atomic radius among halogens and has the highest Pauling electronegativity value of 3.98 (approximately 4.0).
Answer
Fluorine (F).
Why not the others: 'Oxygen' is second highest at 3.44; 'Chlorine' is approximately 3.16; 'Nitrogen' is approximately 3.04.
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