Atomic Structure, Elements & Compounds | Chemistry Worksheet

Help KS3 students build a strong foundation in atomic structure, elements, molecules and compounds with this ready-to-use chemistry worksheet.

This 4-page resource contains 20 questions covering key concepts in atomic structure and the classification of matter. Students practise identifying elements and compounds, distinguishing molecules from compounds, identifying subatomic particles and their charges, determining the number of electrons and calculating mass number.

What’s Included?
4-page printable worksheet
20 questions
Multiple-choice questions
True/False question
Short-answer questions
Visual and model-based questions
Complete answer key
PDF format
Google Docs version

**Learning Objectives

Students will:**

identify the basic structure of an atom
identify elements and compounds
distinguish between molecules and compounds
identify protons, neutrons and electrons
identify the charges of subatomic particles
determine the number of electrons in an atom
calculate mass number
apply their understanding of atomic structure and matter

This print-ready worksheet requires minimal preparation and can be used for classroom practice, homework, revision or independent work.

A complete answer key is included to make marking quick and easy.