Why the metals like the sodium, potassium, magnesium have positive valency?

Answers 2

Explanation:

Valency of Sodium

The electronic configuration of sodium can be written as 2, 8, 1. 2, 8, 1 electrons are distributed in the shells K, L, M respectively. 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.

Answer: all metals have positive valency....it is because they lose electrons  which results them to have positive valency

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