7.2 Ionic Compounds Quiz

How does an ionic compound form from these elements: lithium and oxygen?

• By sharing electrons between lithium and oxygen atoms

• By transferring electrons from lithium to oxygen atoms

• By sharing protons between lithium and oxygen atoms

• By transferring protons from lithium to oxygen atoms

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Explain how an ionic compound forms from these elements: strontium and fluoride.

• Strontium donates two electrons to two fluoride ions, forming SrF2.

• Strontium shares electrons with fluoride to form a covalent bond.

• Fluoride donates electrons to strontium, forming an ionic bond.

• Strontium and fluoride form a metallic bond.

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Interpret: What is the ratio of sodium ions to chloride ions in the crystal?

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What determines the ratio of positive ions to negative ions in an ionic crystal?

• The size of the ions

• The charge of the ions

• The temperature of the environment

• The pressure applied to the crystal

Identify the mineral shown in Figure 8 that is a silicate. Identify the mineral that is a carbonate.

How can an ionic compound made up of charged particles be electrically neutral?

• The total positive charge equals the total negative charge.

• The compound has no net charge due to electron sharing.

• The compound is neutralized by external forces.

• The charges cancel each other out due to magnetic fields.

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Describe the energy change associated with ionic bond formation, and relate it to stability.

• Energy is absorbed, leading to less stability.

• Energy is released, leading to greater stability.

• Energy remains constant, with no effect on stability.

• Energy is absorbed, leading to greater stability.

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Identify three physical properties of ionic compounds that are associated with ionic bonds, and relate them to bond strength.

• High melting and boiling points, electrical conductivity in molten state, and brittleness

• Low melting and boiling points, electrical conductivity in solid state, and malleability

• High melting and boiling points, electrical conductivity in solid state, and ductility

• Low melting and boiling points, electrical conductivity in molten state, and flexibility

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How do ions form bonds, and what is the structure of the resulting compound?

• Ions form covalent bonds, resulting in a molecular structure.

• Ions form metallic bonds, resulting in a lattice structure.

• Ions form ionic bonds, resulting in a crystalline lattice structure.

• Ions form hydrogen bonds, resulting in a linear structure.

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Relate lattice energy to ionic-bond strength.

• Lattice energy is directly proportional to ionic-bond strength.

• Lattice energy is inversely proportional to ionic-bond strength.

• Lattice energy is unrelated to ionic-bond strength.

• Lattice energy is equal to ionic-bond strength.

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