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The incorrect statements among the follo...

The incorrect statements among the following is

A

the firstr ionisation potential of Al is less than the first ionisation potential of Mg

B

the second ionisation potential of Mg is greater than the second ionisation potential of Na

C

the first ionisation potential of Na is less than the first ionisation potential of Mg

D

the third ionisation potential of Al

Text Solution

Verified by Experts

`IE_(2)` of Mg is lower than that of Na because in case of `Mg^(2+)`, 3s electron has to be removed while in case of `Na^(+)`, an electron from the stable inert gas configuration (neon) has to be removed.
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