A shared pair of valence electrons that holds [[atom]]s together in covalent [[compound]]s.<ref>Wile, Dr. Jay L. ''Exploring Creation With Chemistry''. Apologia Educational Ministries, Inc. 1998</ref>
A shared pair of valence electrons that holds [[atom]]s together in covalent [[compound]]s.<ref>Wile, Dr. Jay L. ''Exploring Creation With Chemistry''. Apologia Educational Ministries, Inc. 1998</ref>