Question

HOW THE VALENCY OF AN ELEMENT IS CALCULATED?​

Answer 1

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 calculatethe valency.

Answer 2

HEY MATE I AM HERE WITH YOUR ANSWER

To calculate valency first we have to find the electronic configuration.

Then if no. of electron is more than 4 then you can find that by 8 - no. of electron in outermost shell

And if no.of electron in outermost shell is less than 4 then it is your valency

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