Chemistry · May / June 2024 · Paper 11 · Question 28
5070Metallic bonding
Iron has a high melting point. Which statement explains the high melting point of iron?
- AEach iron cation has a strong electrostatic attraction to a ‘sea’ of delocalised electrons.
- BIn every iron atom there is a strong attraction between the protons and the electrons.
- CIron has the same structure as diamond which has a very high melting point.
- DIron is an alloy and alloys have different physical properties from the elements they contain.
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Correct answer: A. Each iron cation has a strong electrostatic attraction to a ‘sea’ of delocalised electrons.
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