AP®ChemistryCollege BoardExam QuestionsUnit 2: Molecular & Ionic Compound Structure & PropertiesIonic Crystals & Metals

Ionic Crystals & Metals (College Board AP® Chemistry)

Exam Questions

12 mins9 questions

Select a question set to download for
Ionic Crystals & Metals

Select an answer set to view for
Ionic Crystals & Metals

11 mark

The diagrams below are various models of metallic bonding.

Four models of particle arrangements.

Which models represent pure metals?

  • Models A and B

  • Models C and D

  • Models B and C

  • Models A and D

Choose your answer

Did this page help you?

21 mark

The diagrams below are various models of metallic bonding.

Four models of particle arrangements.

Which model represents a substitutional alloy, such as brass?

  • Model A

  • Model B

  • Models B and C

  • Model D

Choose your answer

Did this page help you?

31 mark

The diagrams below are various models of metallic bonding.

Four models of particle arrangements.

Which model represents an alloy that is less malleable, harder and has a higher melting point?

  • Model B

  • Models B and C

  • Model C

  • Model D

Choose your answer

Did this page help you?

41 mark

Considering the structure of ionic crystals, which of the following is incorrect?

  • The systematic arrangement maximizes the Coulombic forces of attraction between positive ions and the sea of delocalized electrons.

  • The systematic arrangement minimizes the Coulombic forces of repulsion between equally charged ions.

  • Ions are arranged in a close packed regular lattice of alternating charged ions.

  • The strength of the Coulombic forces between the ions is proportional to the magnitude of the charge of the ions.

Choose your answer

Did this page help you?

51 mark

Which of the following elements is most likely to form an interstitial alloy with iron?

  • tungsten

  • silver

  • potassium

  • boron

Choose your answer

Did this page help you?

61 mark

Which of the following conditions must be true for a substitutional alloy to form?

  • The two metals must have different atomic radii.

  • The two metals must have significantly different electronegativities.

  • The two metals must have similar atomic radii and chemical properties.

  • The two metals must be in the same group of the periodic table.

Choose your answer

Did this page help you?

71 mark

Piano strings are made from an alloy of iron and carbon, with a small amount of manganese, known as spring steel. The resulting steel-manganese alloy has an especially high tensile strength, allowing it to withstand high amounts of tension without breaking.

Which of the following diagrams best represents the structure of spring steel?

  • Spring steel option A
  • Spring steel option B
  • Spring steel option C
  • Spring steel option D

Choose your answer

Did this page help you?

81 mark

Which of the following statements explains why ionic solids tend to have high melting points?

  • The particles in ionic solids are small and vibrate easily.

  • The ions in the solid are arranged in a way that maximizes repulsion, leading to strong forces.

  • Ionic solids contain delocalized electrons that conduct heat.

  • Strong electrostatic forces between oppositely charged ions in a 3-D lattice require significant energy to overcome.

Choose your answer

Did this page help you?