Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Out of 
and 
, which of these species will have the maximum and minimum I.E respectively:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
and Ne are present in 
period and Na is present in the 
period. The I.E decreases
while moving down the group, hence Na has minimum I.E among given species. 
and Ne are isoelectronic but 
has more protons, thus more 
small size. Hence, its I.E. is highest.
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