Published by:
CGP EDU Academic Team
Published on: August 11, 2026
Amongst the following elements whose electronic configuration are given below, the one having the highest ionization enthalpy is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
The electronic configuration of options and have exactly half-filled 3 p orbitals represents phosphorus and represents arsenic but is smaller in size than . Hence, has highest ionization enthalpy, ionization enthalpy increases left to right in the periodic table as the size decreases.
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