Question

how to find the valency?
can u say the answer with an example.....

Answer 1

Hey,,
Here is your answer..
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. Once you know the number of electrons, you can easily calculate the valency.
Example :--
Magnesium→2,8,2 Valency is 8-2 = 6

HOPE THIS WILL HELP YOU DEAR.
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