Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Among halogens, the correct order of amount of energy released (electron gain enthalpy) is:
A
F 
Cl 
Br 
I
Cl Br I
B
F 
Cl 
I
Cl I
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
As we move from Cl to I, the electron gain enthalpy become less and less negative due to a
corresponding increase in the atomic size and decrease in 
. However, the electron gain enthalpy of F is less negative than that of Cl due to its small size and inter electronic repulsions in it.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Consider the isoelectronic species, and . The correct order of increasing length of their radii i…
The order of screening effect of electrons of and f orbitals of a given shell of an atom on its ou…
The first ionisation enthalpies of and Si are in the order:
The statement that is not correct for periodic classification of elements is:
The period number in the long form of the periodic table is equal to:
The elements in which electrons are progressively filled in 4f -orbital are called: