Which image(s)in the figure represents an ionic compound?

Question

Quizplus · Accepted Answer

Ionic compounds are typically composed of a metal and a nonmetal, resulting in a transfer of electrons and the formation of ions with opposite charges that attract each other to form a solid lattice structure. In the given figure, only images I and IV represent a combination of a metal and a nonmetal, indicating that they are likely ionic compounds. Image II shows covalent bonding between two nonmetal atoms, while image III shows a metallic bond in which electrons are shared among a sea of metal atoms. Therefore, the best choice is E, which includes both I and IV as the only images that represent ionic compounds.

Which Image(s)in the Figure Represents an Ionic Compound