Identify whether the arrangements A and B are crystalline or amorphous.
Understand the Problem
The question asks to identify whether the arrangements A and B are crystalline or amorphous.
Answer
Arrangement A is crystalline, and arrangement B is amorphous.
Arrangement A is crystalline due to its ordered and repeating pattern. Arrangement B is amorphous because of its random and disordered structure.
Answer for screen readers
Arrangement A is crystalline due to its ordered and repeating pattern. Arrangement B is amorphous because of its random and disordered structure.
More Information
Crystalline solids exhibit long-range order, meaning their atoms are arranged in a repeating pattern that extends throughout the material. Amorphous solids, on the other hand, only exhibit short-range order, meaning the atoms are arranged randomly.
Tips
A common mistake is to confuse polycrystalline materials with amorphous materials. Polycrystalline materials are made up of many small crystals (crystallites) with different orientations, while amorphous materials lack any long-range order.
Sources
- 12.1: Crystalline and Amorphous Solids - Chemistry LibreTexts - chem.libretexts.org
- Differences Between Amorphous & Crystalline Solids - universitywafer.com
- Crystalline vs. Amorphous Solids | Differences & Examples - Lesson - study.com
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