Podcast
Questions and Answers
Which of the following forces hold molecules together in molecular solids?
Which of the following forces hold molecules together in molecular solids?
- Covalent bonds
- Metallic bonds
- Ionic bonds
- Van der Waals forces (correct)
What is the atomic packing factor (APF) for a simple cubic (SC) crystal structure?
What is the atomic packing factor (APF) for a simple cubic (SC) crystal structure?
- 1.00
- 0.68
- 0.52 (correct)
- 0.74
Which crystal structure has the highest atomic packing factor?
Which crystal structure has the highest atomic packing factor?
- Body-centered cubic (BCC)
- Hexagonal close-packed (HCP)
- FCC and HCP have the same highest packing factor (correct)
- Face-centered cubic (FCC)
What is the stacking sequence of atoms in a hexagonal close-packed (HCP) structure?
What is the stacking sequence of atoms in a hexagonal close-packed (HCP) structure?
Which of the following material classes typically has the highest density?
Which of the following material classes typically has the highest density?
What is the term used to describe a material that exhibits different crystal structures under different conditions?
What is the term used to describe a material that exhibits different crystal structures under different conditions?
Which of the following statements about single crystals is true?
Which of the following statements about single crystals is true?
What is the term used to describe the smallest repeating unit in a crystal lattice?
What is the term used to describe the smallest repeating unit in a crystal lattice?
Which of the following crystal structures is described as having atoms touching each other along the cube diagonals?
Which of the following crystal structures is described as having atoms touching each other along the cube diagonals?
What is the term used to describe the positions occupied by atoms or particles in a crystal lattice?
What is the term used to describe the positions occupied by atoms or particles in a crystal lattice?
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