Chemistry, asked by Anonymous, 1 year ago

How to know the valency of a molecule?

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Answered by ExpertSohanXLR8

Calculate the valency of an element using the total number of electrons. The valency of an atom is equal to the number of electrons in the outer shell if that number is four or less. Otherwise, the valency is equal to eight minus the number of electrons in the outer shell.

Anonymous: Ok it's for a particular atom...But how we now for a hetroatomic molecule

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