Atomic structure and the Periodic Table — Difficult
Transfer your understanding to a changed context, justify decisions and check your reasoning. No hints during the test.
Includes extension practice
Atomic structure, isotopes and periodic patterns are covered; isotope-abundance calculations are additional practice.
Easy, Normal and Difficult describe practice demand; they are not the official Core and Extended tiers.
- igcse-cambridge-cie-0652 2025–2026 · C3.3; C8.1–C8.2
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