Question

what do you understand by valence electrons? explain.

Answer 1

Electrons in the last she'll are known as valence electrons .

Answer 2

bhai valence electron ......is that electron which present in outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair.