Question

Classify each solid as a covalent, ionic, metallic, or molecularsolid.
sodium sulfide, pure sodium, frozen carbon dioxide, diamond.

Answer 1

   Molecule                                          Type of bonding

sodiumsulfide                                         Ionic solid

puresodium                                            Metallic solid

frozen carbondioxide                                Molecularsolid

diamond.                                                  Covalent solid
              

Answer 2

Covalent->Fullerenes Ionic->Sodium Sulfide Metallic->Pure Sodium Molecular->Frozen Carbon Dioxide P.S. They only change up the first option ;) , so Diamond would be covalent.