Question

what's valency? i need a easy definition don't copy paste (request)​

Answer 1

Answer:

It's easy :-

In chemistry, the valence or valency of an element is the measure of its combining capacity with other atoms when it forms chemical compounds or molecules.

Answer 2

• Valency is the number of hydrogen atoms which can combine with (or displace ) one atom of the elment forming a compund  .

• Also , valency is the number of electrons donated or accepted by an atom.

$|\frac{Hydrogen \ chloride}{Water}|\frac{HCl}{H_2O} |\frac {One\ atom\ of\ hydrogen\ combines\ with\ one\ atom\ of\ oxygen. }{ Two\ atoms\ of\ hydrogen\ combine\ with\ one\ atom\ of\ oxygen. }|\\ |\frac{Valency\ of\ chlorine\ =\ 1}{Valency\ of\ oxygen\ =\ 2 }|$