Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Which one of the following arrangements represents the correct order of least negative to most negative electron gain enthalpy for 
, Ca, Al, 
and 
?
A
Al 
B
Al 
C
D
Ca 
Text Solution
Verified by ExpertsThe correct answer is:
D
Electron gain enthalpy becomes less negative from top to bottom in a group while it becomes more negative from left to right within a period.
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