Published by:
CGP EDU Academic Team
Published on: August 12, 2026
Correct order of 1st ionisation potential among following elements Be, 
is
A
B
C
Be 
D
Be 
Text Solution
Verified by ExpertsThe correct answer is:
A
The energy required to remove the most loosely bound electron from an isolated gaseous atom is called the ionisation energy. The ionisation potential decreases as the size of the atom decreases. Atoms with fully or partly filled orbitals have high ionisation potential.
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