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Question
Chemistry
The third ionisation enthalpy is highest in
Q. The third ionisation enthalpy is highest in
6669
208
KCET
KCET 2021
Classification of Elements and Periodicity in Properties
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A
Alkali metals
22%
B
Alkaline earth metals
45%
C
Chalcogens
25%
D
Pnictogens
8%
Solution:
Alkaline earth metals have
n
s
2
configuration.
After the removal of
2
nd
electron, they get stable noble gas configuration.