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Group 7 Elements – Lesson & Worksheet

Edexcel IGCSE Chemistry | Unit 2.5–2.8C | Lesson 22

Overview

A complete, structured lesson introducing the halogens in Group 7. Students explore the physical properties, trends in reactivity, displacement reactions, and electron configurations of chlorine, bromine, iodine, and beyond.

Specification Covered

• 2.5: Colours, physical states, and trends in chlorine, bromine, iodine
• 2.6: Use of trends to predict the properties of other halogens
• 2.7: Displacement reactions and reactivity trends
• 2.8C (Triple): Explanation of reactivity trends in terms of electron configurations

What’s Included

• Editable PowerPoint Lesson
• Student Worksheet
• Displacement reaction task
• Exam-style questions and structured tasks

Features

• Fully aligned with Edexcel IGCSE Chemistry Unit 2
• Clear visual slides and diagrams for halogen properties and reactions
• Step-by-step explanation of displacement reactions
• Electron configuration reasoning scaffolded for triple students
• Application questions on reactivity trends and prediction tasks
• Consistent Synapse Science layout for easy integration into your teaching sequence