Chemistry · IGCSE · Edexcel · Pearson Edexcel International GCSE (9–1) Chemistry (Modular) — 4XCH1 · Specification point · 6.4C · Inorganic chemistry: Part 2 · Group 1 (alkali metals) – lithium, sodium and potassium
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6.4C explain the trend in reactivity in Group 1 in terms of electronic configurations |