5 Questions
What type of solid has a well-defined arrangement and long-range molecular order?
Crystalline Solid
Which type of molecular force is responsible for the stability of crystals?
Ionic forces
In which unit cell type do nearest-neighbor atoms touch one another?
Atomic Hard-Sphere Model
Which type of solid has NO well-defined arrangement and NO long-range molecular order?
Amorphous Solid
In which type of solid are the net attractive intermolecular forces (IMF) at maximum?
Crystalline Solid
Study Notes
Types of Solids
- Crystalline solids have a well-defined arrangement and long-range molecular order.
Molecular Forces in Solids
- The stability of crystals is due to dispersion forces (London dispersion forces).
Unit Cells
- In face-centered cubic (FCC) unit cells, nearest-neighbor atoms touch one another.
Amorphous Solids
- Amorphous solids have NO well-defined arrangement and NO long-range molecular order.
Molecular Forces in Solids
- In solids with a highly ordered crystal structure, the net attractive intermolecular forces (IMF) are at maximum.
Test your knowledge of the crystal structure of engineering materials with this quiz. Explore the seven types of unit cells, categories of solids, and the distinctions between crystalline and amorphous solids. Sharpen your understanding of the key concepts in material science.
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