Half-life — Difficult
Transfer your understanding to a changed context, justify decisions and check your reasoning. No hints during the test.
Includes extension practice
Half-life and applications are included. The syllabus explicitly excludes background radiation from half-life calculations.
Easy, Normal and Difficult describe practice demand; they are not the official Core and Extended tiers.
- Cambridge IGCSE Co-ordinated Sciences 0654 syllabus 2028–2029 · P5.2.4–P5.2.5, pp74–75
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