Why is sodium's valence one?
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Valency of Sodium
The electronic configuration of sodium can be written as 2, 8, 1. ... Therefore, valence electron in sodium is 1 and it needs to lose 1 electron from the outermost orbit to attain octet. Hence, the valency of sodium is 1.
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Explanationi:it's electron configuration is 2 8 1 so it lose 1 electron....
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