Question detail
What is the role of delocalised electrons in metallic bonding?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Chemical bonds, ionic, covalent and metallic
Question
- A. They are fixed in place within the metal structure.
- B. They can move freely throughout the metallic structure.
- C. They are responsible for the ionic bonds in metals.
- D. They form covalent bonds with non-metals.
Answer
The correct option is They can move freely throughout the metallic structure.. This answer is correct because it matches the approved learning objective to explain that delocalised electrons can move through the whole metallic structure in the subtopic Metallic bonding.
Explanation
The correct option is They can move freely throughout the metallic structure.. They can move freely throughout the metallic structure. is correct because it directly supports the approved learning objective to explain that delocalised electrons can move through the whole metallic structure. This belongs to the subtopic Metallic bonding within Chemical bonds, ionic, covalent and metallic, 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 Metallic bonding.
Common mistake
Misunderstanding Delocalised Electrons
Students often think that delocalised electrons are fixed in place within the metallic structure.
Emphasize that delocalised electrons are free to move throughout the metallic structure, which contributes to properties like electrical conductivity.
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