6Giant Structures Metallic BondingEasy1 markHow are the structures of diamond and silicon(IV) oxide similar?AMolecules of both diamond and silicon(IV) oxide are held together by weak attractive forces.BThey both contain atoms arranged in planes held together by weak bonds.CThey both contain ions that are free to move.DThe carbon in diamond and the silicon in silicon(IV) oxide each have four covalent bonds.Grade answerGrading criteria