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5 October, 17:26

Which is the correct electron configuration for sodium (na) ?

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  1. 5 October, 19:19
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    The electron configuration of a neutral sodium atom is 1 s2 2 s2 2 p6 3 s1.

    In the case of sodium the one lone electron in the 3s valence shell would easily be released in order for sodium to have a filled valence shell at 2 s2 2 p6.

    Therefore, the electron configuration of the sodium ion is

    1 s2 2 s2 2 p6.
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