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CAIE IGCSE Chemistry 8.4.2 Transition elements as having ions

CAIE IGCSE Chemistry 8.4.2 Transition elements as having ions
Cambridge IGCSE Chemistry 0620 syllabus for exams in 2026, 2027 and 20282026–2028

Practise using formulae and ion charges to recognise variable oxidation numbers in transition elements such as copper and iron.

How this is tested

  • compare pairs of compounds to find the metal shown in two oxidation states

Question 26

[Maximum number: 1]

Which property of copper explains why it is classified as a transition element?

A

Copper can be bent into different shapes.

B

Copper forms Cu2+\mathrm{Cu}^{2+} and Cu+\mathrm{Cu}^{+}ions.

C

Copper is a good conductor of electricity.

D

Copper has a low density.