Metals and Reactivity Series IGCSE Chemistry: Complete Guide

⚗️ Understanding Metals in IGCSE Chemistry

Metals and their reactivity are fundamental chemistry concepts. This guide covers metal properties, reactivity series, and extraction methods.

🧠 Memory Tips

Reactivity Series: “Please Stop Calling Me A Zebra Instead Try Learning How Copper Saves Gold”

• Potassium, Sodium, Calcium, Magnesium, Aluminum
• Zinc, Iron, Tin, Lead, Hydrogen
• Copper, Silver, Gold

Metal Properties: “CHAMPS”

• Conduct electricity and heat
• High density
• Alloys can be formed
• Malleable (can be hammered)
• Positive ions formed
• Sonorous (ring when struck)

📚 Key Concepts

Metal Properties

• Electrical conductors: Free electrons
• Thermal conductors: Electron movement
• Malleable: Can be shaped
• Ductile: Can be drawn into wires
• Lustrous: Shiny appearance

Reactivity Series

Most reactive: K, Na, Ca, Mg, Al, Zn, Fe, Sn, Pb, H, Cu, Ag, Au Least reactive

Displacement Reactions

• More reactive displaces less reactive
• Example: Zn + CuSO₄ → ZnSO₄ + Cu
• No reaction: Cu + ZnSO₄ → No reaction

Metal Extraction

• Very reactive metals: Electrolysis (K, Na, Ca, Mg, Al)
• Medium reactive: Reduction with carbon (Zn, Fe, Sn, Pb)
• Unreactive metals: Found native (Cu, Ag, Au)

🎯 Exam Tips

Common Questions:

1. Predict displacement reactions (4 marks)
2. Explain metal extraction methods (6 marks)
3. Compare metal properties (5 marks)

Key Reactions:

• Metal + Acid → Salt + Hydrogen
• Metal + Oxygen → Metal oxide
• Metal oxide + Carbon → Metal + Carbon dioxide

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