CBSE Class 9 Science, Chapter 9: Atomic Foundations of Matter
NCERT Exploration, pages 162–183. 15 topics, about 6 days of study at 20 to 30 minutes a day.
Topics in this chapter, with textbook pages
- Introductionpages 162–165
- 9.1Law of Conservation of Masspages 165–167
- 9.2Law of Constant Proportionspages 167–168
- 9.3Dalton’s Atomic Theorypage 168
- 9.4How Atoms Combine?page 169
- 9.4.1Bonding by sharing of electrons — Covalent Bondpages 169–172
- 9.4.2Bonding by electron transfer — Ionic bondpages 172–175
- 9.5Writing Chemical Formulaepage 175
- 9.5.1Writing chemical formulae of covalent compoundspage 175
- 9.5.2Writing chemical formulae of ionic compoundspages 175–177
- 9.6Properties of the Ionic and the Covalent Compoundspages 177–179
- 9.7Molecular Mass of Covalent Compoundspage 179
- 9.8Formula Unit Mass of Ionic Compoundspages 179–180
- At a Glancepage 180
- Revise, Reflect, Refinepages 181–182
Teach this chapter at home
- A day-by-day plan with the exact textbook pages for each day.
- A step-by-step script for each day, so you know what to say and ask, written from the NCERT chapter.
- A quiz at the end and a written task you can check with a photo of the notebook.
Textbook pages follow the 2026-27 NCERT print and can differ by a page or two in older prints. Adhian Gurus is not affiliated with NCERT or CBSE.