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Polyatomic ions are atoms held together by covalent bonds as a group and that from CHM 1220 at Wayne State University
The substances that are held by covalent bonds are molecular substances. Substances that are held by ionic bonds are ionic substances. The group of atoms held together by covalent bonds is called a molecule. Diatomic molecules . Molecules that consist of two atoms shared covalently, such us Cl 2, H 2 (1e), F 2, O 2, N 2, etc. Covalent bonding may be presented in three ways: 1. Nonpolar.