Published by:
CGP EDU Academic Team
Published on: August 14, 2026
The electron gain enthalpies of halogens in 
are as given below. 
. The less negative value for 
as compared to that of 
is due to
A
strong electron-electron repulsion in the compact 
-subshell of 
. and
-subshell of . and
B
weak electron-electron repulsion in the bigger 
-subshell of 
.
-subshell of .
C
smaller electronegativity value of 
than 
.
than .
D
Both
Text Solution
Verified by ExpertsThe correct answer is:
D
Due to small size of F-atom, the electron-electron repulsions in compact 
-subshell are large and hence, the incoming electron is not accepted with the same ease as is the case with 
(less electron-electron repulsions).
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