IB Chemistry HL 3.1.8 Hl Transition Element Properties Questions

Use real exam questions to relate incomplete d-sublevels to magnetic behaviour, variable oxidation, catalysis, colour and ligand complexes.

Exam points

Identify a transition element from an incomplete d-sublevel and relate its electron configuration to unpaired electrons or magnetic behaviour.
Explain variable oxidation states and catalytic behaviour using the close energies of d and s sublevels and reversible electron transfer.
Recognize coloured compounds and complex ions by identifying ligands, coordination and the characteristic transition-element chemistry.

[Maximum number: 1]

Beryllium is a low-density metal that is used in specialized lightweight alloys.

Iron (III) chloride also exists as a dimer in the vapour phase, but iron, unlike beryllium, is a transition element.

Outline, in terms of its electronic structure, what identifies a transition element.

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