NEET2022Chemistry-Periodic Table
NEET 2022 Chemistry Ionisation Enthalpy MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Gadolinium has a low value of third ionisation enthalpy because of ________.
A
high electronegativity
B
high basic character
C
small size
D
high exchange enthalpy
Correct Answer
Option D
Detailed Explanation
Gadolinium has a half-filled 4f subshell, which provides extra stability and results in high exchange enthalpy.
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