# Chapter 2 - Questions and Problems - Page 77: 2.60

CH$_{4}$, CCl$_{4}$, ICl, and NF$_{3}$ are likely to be molecular compounds. NaBr, BaF$_{2}$, and CsCl are likely to be ionic compounds.

#### Work Step by Step

CH$_{4}$, CCl$_{4}$, ICl, and NF$_{3}$ are likely to be molecular compounds because they are compounds between two nonmetal elements. Nonmetal elements usually don't transfer electrons to one another; usually, the electrons are shared between the atoms. NaBr, BaF$_{2}$, and CsCl are likely to be ionic compounds because they involve bonds between a metal and nonmetal. Metals usually are electron donors and nonmetals are usually electron acceptors; therefore, metals form cations and nonmetals form anions. It is this attraction between positive and negative charges that forms ionic bonds.

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