Question

How to check valency

Answer 1

Hi..

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..

Hope this helps u!!

Answer 2

We check valency that an outer most shell contain how much electrons and minus by given electron in outer most shell

Hope this is help fulll !!!!!!!!!