Question

How to calculate valency please tell me guys ​

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 calculate the valency.

its very easy...

Answer 2

Explanation

Valency is a measure of the ability of an atom to bond with other atoms. The higher the number of valent electrons, the more reactive the atom or molecule is.