Bonding & StructureMedium Exam FrequencyAQA

Simple Molecules

Revise Simple Molecules in Bonding & Structure for GCSE Chemistry with 20 exam-style questions and 20 flashcards. This topic appears regularly enough that it should be part of a solid GCSE revision cycle.

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The Tale of Two Substances

Introduction 2

Understanding Intermolecular Forces

Deep Dive 3

Simple Molecular Structures — Forces Within and Between

Diagram 4

How It Works: Why Simple Molecules Have Low Melting Points

How It Works 5

Key Definitions

Definitions 6

Key Facts to Memorise

Key Facts 7

Common Misconceptions

Misconceptions 8

Memory Aids

Memory Aid 9

Exam Focus

Exam Focus 10

Exam Tips for Simple Molecules

Exam Tips 11

Topic Summary: Simple Molecules

Summary

Sample Flashcards

What are intermolecular forces?

Weak forces of attraction between different molecules

What does molecular formula show?

Number and type of atoms in one molecule (e.g., H₂O, CO₂, CH₄)

Sample Questions

Which type of force holds simple molecules together as a substance?

A. Weak intermolecular forces between molecules
B. Strong ionic bonds between oppositely charged ions
C. Metallic bonds from a sea of delocalised electrons
D. Covalent bonds between separate molecules

1 markfoundation

Explain why chlorine (Cl2) has a low boiling point.

2 marksstandard

exam-style questions

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Giant Covalent Structures