Question

What is a valency? follow mah :)

Answer 1

$\huge \underline \bold \red {AnSwer :-}$

• The valency of an element is the number of hydrogen atoms that can combine with or replace (either directly or indirectly) one atom of the element.

⟹ For example :-

Oxygen has six valence electrons, but its valency is 2. Some elements may have more than one combining power (or valency), while others have just one.