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2.23 (i) Write the electronic configurations of the following ion:

(b) $\textup{Na}^+$

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The electronic configuration of $Na$ having $Z=11$ is : $1s^22s^22p^63s^1$

Now, the electronic configuration of $\textup{Na}^+$ will be $1s^22s^22p^6$ .

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Divya Prakash Singh

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