Each of the given substance should be matched with their corresponding basic unit on the basis of whether they are atomic element, molecular element, molecular compound, or ionic compound. Concept Introduction: The element that exists in nature as a single atom is known as an atomic element. Thus, single atoms are the basic units of atomic elements. In contrast, the element that exists as a diatomic molecule in which two same atoms are bonded together is known as a molecular element. Thus, molecular elements have molecules as their basic units. Ionic compounds are made up of metals and nonmetals. The formula units of metal cation and metal anion forms the basic units of ionic compounds.

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Chapter 5, Problem 48E

Interpretation Introduction

Interpretation: Each of the given substance should be matched with their corresponding basic unit on the basis of whether they are atomic element, molecular element, molecular compound, or ionic compound.

Concept Introduction: The element that exists in nature as a single atom is known as an atomic element. Thus, single atoms are the basic units of atomic elements. In contrast, the element that exists as a diatomic molecule in which two same atoms are bonded together is known as a molecular element. Thus, molecular elements have molecules as their basic units. Ionic compounds are made up of metals and nonmetals. The formula units of metal cation and metal anion forms the basic units of ionic compounds.

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