
A full, clearly sequenced unit (39 Slides) covering Topic 11 Group 2 Elements AS/A Level Chemistry. Group 2 physical and chemical trends, reactions, solubility patterns and thermal stability with diagrams, animations and fully worked examples.
This PowerPoint directly addresses the specification points shown on slides 2–3, including:
• Physical trends down Group 2: atomic radius, melting point, first ionisation energy
• Metallic bonding strength and structural explanations
• Group 2 as reducing agents and formation of M²⁺ ions
• Reactions with acids (chlorides, sulfates, nitrates) and hydrogen production
• Solubility trends of Group 2 sulfates and hydroxides
• Reactions with oxygen, including flame colours
• Reactions with cold water, hot water and steam
• Oxides reacting with water to form hydroxides; ionic equations
• Solubility and pH differences of Mg(OH)₂ → Ba(OH)₂
• Reactions of hydroxides with sulfuric acid
• Carbonates: reactions with acids, solubility, and formation of CO₂
• Thermal decomposition of carbonates and nitrates and trends in stability
• Charge density and polarisation explanation for decomposition patterns
• Predicting relative reactivity trends and applications
What This Resource Provides
• Bold definitions aligned with CIE textbook and exam phrasing
• Easy-to-follow explanations of Group 2 periodic trends
• Full reaction equations with oxidation state changes
• Solubility comparisons illustrated with diagrams and examples
• Practical contexts including flame tests and carbonate reactions
• Detailed breakdown of thermal stability and polarisation theory
• AfL checks, structured practice and exam-style questions
• Summary tables consolidating key Group 2 trends
• Fully aligned to the Cambridge International AS & A Level 9701 specification
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