The nuclear atom — Difficult
Transfer your understanding to a changed context, justify decisions and check your reasoning. No hints during the test.
Includes extension practice
Nuclear composition, isotopes and resource-level fission/fusion are included. Rutherford scattering and detailed nuclear reaction equations add extension practice.
Easy, Normal and Difficult describe practice demand; they are not the official Core and Extended tiers.
- Cambridge IGCSE Physical Science 0652 syllabus 2025–2026 · P5.1, p40; P1.6.4, p30
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