Question

What is a valence electron? Where is it located?

Answer 1

A valence electron is an electron located in the outermost shell, or energy level, of an atom. It is involved in the chemical reactions and interactions of the atom with other atoms. The number of valence electrons determines the reactivity and behavior of an atom, as they are responsible for forming chemical bonds with other atoms. Typically, the valence electrons are found in the s and p orbitals of the highest energy level in an atom.