Question detail
Why can layers of atoms in pure metals slide over each other?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
How bonding and structure are related to the properties of substances
Question
- A. Because they are arranged in irregular patterns
- B. Because of the presence of delocalised electrons
- C. Because they are held together by weak intermolecular forces
- D. Because they are arranged in regular layers
Answer
The correct option is Because they are arranged in regular layers. This answer is correct because it matches the approved learning objective to explain why layers of atoms in pure metals can slide, allowing metals to be bent and shaped in the subtopic Properties of metals and alloys.
Explanation
The correct option is Because they are arranged in regular layers. Because they are arranged in regular layers is correct because it directly supports the approved learning objective to explain why layers of atoms in pure metals can slide, allowing metals to be bent and shaped. This belongs to the subtopic Properties of metals and alloys within How bonding and structure are related to the properties of substances, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Properties of metals and alloys.
Common mistake
Misunderstanding Metal Structure
Students often think that the layers of atoms in pure metals cannot slide because they are tightly packed.
Emphasize that the regular arrangement of atoms in pure metals allows layers to slide over each other, which is what enables metals to be bent and shaped.
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