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Figure 5 shows part of the structure and bonding in diamond - AQA - GCSE Chemistry: Combined Science - Question 5 - 2018 - Paper 1
Question 5
Figure 5 shows part of the structure and bonding in diamond. Explain why diamond has a high melting point. [3 marks]
Worked Solution & Example Answer:Figure 5 shows part of the structure and bonding in diamond - AQA - GCSE Chemistry: Combined Science - Question 5 - 2018 - Paper 1
Step 1
Explain why diamond has a high melting point.
Answer
Diamond possesses a high melting point due to its extended covalent network structure. Each carbon atom in diamond is tetrahedrally bonded to four other carbon atoms through strong covalent bonds. Breaking these bonds requires a significant amount of energy, resulting in a high melting point. The strength of these covalent bonds and the overall giant structure of diamond contribute to its thermal stability.