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Why formation of Na^(2+) ion is not poss...

Why formation of `Na^(2+)` ion is not possible ?

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`underset(1s^(2)2s^(2)2p^(6)3s^(1))(Na) overset(+IE_(1))underset(-e^(Θ))rarr underset(1s^(2)2s^(2)2p^(6))(Na^(o+)) overset(+IE_(2))underset(-e^(Θ))rarr underset(1s^(2)2s^(2)2p^(5))(Na^(2+))`
After formation of `Na^(o+)`, the `Na^(o+)` ion has attained stable noble gas configuration and hence further removal of electrons will require high energy.
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