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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
exists and is an alternate of. Merge this question into. Split and merge into it. Answer by Kittenono. Confidence votes 262. Nucleotides are held together by hydrogen bonds between the strands and together on one strand by phosphodiester bonds.ovalent bonding holds CuCl2 together. Covalent bonding is a shared electron pairing of electrons from a non-metal and a metal. For the sake of your chemistry professor's sani â¦ ty please memorize the metals and nonmetals on the periodic table. In fact just memeorize the periodic table.