The atom — Normal
Apply the topic independently and explain your method. No hints during the test.
Includes extension practice
Basic atomic composition overlaps the science course. Rutherford alpha-scattering evidence extends the listed nuclear-physics requirements.
Easy, Normal and Difficult describe practice demand; they are not the official Core and Extended tiers.
- Cambridge IGCSE (9–1) Co-ordinated Sciences 0973 syllabus 2028–2029 · P5.1, p73; chemical atomic structure C2
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