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Going from fluorine to chlorine to bromine and then to iodine, the electronegativity:
ADecreases
BIncreases
CFirst decreases then increases
DRemains constant
Answer & Solution
Correct answer: A. Decreases
1. These are halogens going down Group 17.
2. Down a group, atomic size increases and the nucleus holds bonding electrons less tightly.
3. Hence electronegativity decreases from fluorine to iodine.
_Source: RRB Group D CEN-02/2018 PYQ, Q.18._
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