Ionic: polyatomic ion, formula unit, Fe 2+, metal and nometal, Al(NO3)3, transition elements, copper (II) carbonate, lithium hydride, calcium oxide, salt, Covalent: molecules, CH4, mono-, 2 nonmetals, CO2, P6S3, F2, silicon dioxide, tetrasulfur tiroxide, phosphorous pentasulfide,

Ionic or Covalent

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