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Iron is a transition element. Tick ( ) two boxes that show correct statements about the properties of iron and Group I elements. Iron and Group I elements conduct electricity. Iron has a higher melting point than Group I elements. Group I elements form coloured compounds but iron compounds are white. Group I elements...
See it on the paper →Suggest one property of copper that is not shown by aluminium.
See it on the paper →Suggest one physical property that is shown by both copper and aluminium.
See it on the paper →The melting point of lead(II) bromide is 373 °C. The temperature in the electrolysis cell is 400 °C. When the apparatus cools, lead(II) bromide solidifies first while the lead metal produced is still a liquid. Use this information to suggest a value for the melting point of lead. °C
See it on the paper →The thermal conductivity of the metal mercury is 40 times higher than the thermal conductivity of the non-metal sulfur. Suggest why the thermal conductivity of mercury is so much greater.
See it on the paper →Describe two physical properties of copper that are not properties of sodium.
See it on the paper →Describe one physical property of copper that is also a property of sodium.
See it on the paper →Suggest one physical property of copper that is also a physical property of aluminium.
See it on the paper →Iron is a transition element. Sodium is a Group I element. Describe one difference and one similarity between the physical properties of iron and of sodium. difference similarity
See it on the paper →Most candidates knew that iron and Group I elements are metals and therefore conduct electricity. Fewer also responded that iron has a higher melting point than Group l elements. Candidates should be aware that the melting points of transition elements are high, so the melting point of iron is likely to be higher than the Group I metals. Transition metals are denser than Group l elements and tend...
— Examiner report, May/June 2025, 0653/32 Q5(a) (Cambridge)
Candidates were asked to recall differences in properties between transition and Group I metals. Some candidates wrote about colour differences, rather than the acceptable answer that copper forms coloured compounds.
— Examiner report, October/November 2020, 0653/33 Q5(b)(i) (Cambridge)
Stronger candidates could identify a property shared by copper and sodium. All of the mark scheme answers were seen, with “good conductor” being the most common correct response.
— Examiner report, October/November 2020, 0653/33 Q5(b)(ii) (Cambridge)
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