Chapter 3: Atoms and Molecules
Read this chapter on NCERT Archive
The full chapter, with its textbook PDF and chapter solutions, now lives on NCERT Archive. Use the buttons below to open it.
About Chapter 3 (Atoms and Molecules)
Chapter 3 (Atoms and Molecules) is chapter 3 of 12 in the new edition of Exploration (NCERT Class 9 Science), a textbook for Class 9 students at the Secondary stage. This is the new edition, the textbook brought out under the NEP 2020 / NCF-SE 2023 syllabus rollout.
In the book it comes after Chapter 2 (Is Matter Around Us Pure) and before Chapter 4 (Structure of the Atom), so it helps to be comfortable with the earlier chapters before starting it.
What you will find on NCERT Archive
NCERT Archive is our dedicated site for NCERT textbooks and solutions, Class 1 to 12. The page for Chapter 3 (Atoms and Molecules) there lets you read the chapter and open its textbook PDF, and it links straight to the solutions for the same chapter. Use the buttons above to go to it.
How to study Atoms and Molecules
- Read the chapter once for the big picture, then again slowly, noting each new term and definition.
- Draw and label the diagrams yourself; they are asked often in tests.
- Do the in-text activities and questions, then the end-of-chapter exercises, before checking answers.
- Write short answers in your own words and compare them with the NCERT answers for completeness.
Frequently Asked Questions
Which book is Chapter 3 (Atoms and Molecules) of Class 9 Science from?
It is from the new edition of Exploration (NCERT Class 9 Science). The book has 12 chapters, and this is chapter 3.
Where can I read Chapter 3 (Atoms and Molecules) of Class 9 Science?
On NCERT Archive. Press the "Open Chapter 3" button on this page and you will land on the chapter page there, where you can read it and open its textbook PDF.
Is this the new edition or the old edition?
This page is for the new edition. If your school still uses the earlier textbook, use the Old Edition switch at the top of the page.
Is it free to use?
Yes. Scholar Donkey and NCERT Archive are free to use and need no login.