Question

define valence electron​

Answer 1

Answer:

In chemistry, a valence electron is an electron in the outer shell 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

Answer 2

Answer:

An electron in the outer shell of an atom, and can participate in the formation of a chemical bond is called a valence electron.

Explanation:

Valence electron is the electron in the outer shell of an atom. It can participate in bond formation. Valence electron determines the chemical properties of the atom. A covalent bond is formed when both atoms in the bond contribute one valence electron in order to form a shared pair. An ionic bond is formed by the transfer of valence electrons between two atoms.