Question detail

Describe the structure of graphite and explain how its bonding affects its electrical conductivity.

Try the question, check the answer, then read the explanation to understand the curriculum point.

At a glance

Question

Type

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Style

Topic

Structure and bonding of carbon

Question

Describe the structure of graphite and explain how its bonding affects its electrical conductivity.

Answer

Graphite has a layered structure made of hexagonal rings of carbon atoms, with each carbon atom forming three covalent bonds. One electron from each carbon atom is delocalised, allowing these electrons to move freely between the layers, which enables graphite to conduct electricity.

Explanation

This question assesses the student's ability to describe the structure of graphite and relate it to its properties, specifically electrical conductivity. The answer effectively links the bonding arrangement to the presence of delocalised electrons, which is crucial for understanding graphite's conductive nature.

Common mistake

Misunderstanding Carbon Bonds in Graphite

Students often state that each carbon atom in graphite forms four covalent bonds, similar to diamond.

Students should remember that each carbon atom in graphite forms three covalent bonds, allowing one electron to be delocalised.

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