Published by:
CGP EDU Academic Team
Published on: August 11, 2026
Identify the elements 
and 
using the ionisation energy values given below:
Ionization energy 
495 | 4563 | |
731 | 1450 |
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
is very low but 
is very high due to stable noble gas configuration of 
.
Low
is very high.
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