This exam tips covers Exam Tips — Alkali Metals within Group 1: Alkali Metals for GCSE Chemistry. Revise Group 1: Alkali Metals in Atomic Structure for GCSE Chemistry with 20 exam-style questions and 20 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 11 of 12 in this topic. Treat this as a marking guide for what examiners are looking for, not just a fact list.
Topic position
Section 11 of 12
Practice
20 questions
Recall
20 flashcards
💡 Exam Tips — Alkali Metals
🎯 Common Question Types:
- Write the equation for an alkali metal reacting with water (2 marks)
- Describe observations when sodium/potassium is added to water (3 marks)
- Explain why reactivity increases going down Group 1 (3 marks)
- Compare properties of alkali metals with transition metals (4 marks)
📝 Key Command Words:
- Describe: State what you would see — fizzing, floating, melting, flame colour
- Explain: Link to outer electrons — distance from nucleus, shielding
- Write: Give word or symbol equation (remember to balance)
- Predict: Use the trend to forecast behaviour of rubidium or caesium
⚠️ Common Mistakes to Avoid:
- Saying reactivity decreases down Group 1 — it INCREASES
- Forgetting the products are hydroxide AND hydrogen (not just one)
- Not balancing the equation (2Na + 2H₂O → 2NaOH + H₂)
- Describing alkali metals as hard or dense — they are soft and low density