Lone pair electrons are pairs of valence electrons that are not involved in bonding and are located on an atom. They occupy specific regions around the central atom in a molecule or ion.
Related terms
Valence Electrons: Electrons located in the outermost energy level of an atom that participate in chemical bonding.
Bonding Electrons: Electrons shared between atoms to form covalent bonds.
Lewis Structure: A diagram that shows how atoms are connected and arranged within a molecule using dots to represent valence electrons.