Question

what do you mean by the valency of an element

Answer 1

The valency of an element means the number of electrons in its valence shell or last shell.

For example , atomic number of sodium is 11
its electronic configuration is 2, 8 , 1

it means it has 1 electron in its valence shell and thus it's valency is 1

Answer 2

the valency of an element means the amount of combination power in any chemical reaction

MARK AS BRAINLIEST