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The incorrect statement among the follow...

The incorrect statement among the following is

A

The first ionization potential of Al is less than the first ionization potential of Mg.

B

The second ionization potential of Mg is greater than the second ionization potential of Na.

C

The first ionization potential of Na is less than the first ionization potential of Mg.

D

The third ionization potential of Mg is greater than the third ionization potential of Al

Text Solution

Verified by Experts

The correct Answer is:
B
`IE_(2)` of Mg is lower than that of a Na because in case of `Mg^(+)`, 3s-electron has to be removed whereas in case of `Na^(+)` an electron is removed from the stable inert gas configuration which is difficult.
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DISHA PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-Exercise -2 :Concept Applicator
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