In this page, we have given NCERT Solutions for Class 9 Science Chapter 4 Structure of the Atom through which you can improve marks in the examinations. It will be useful in in building a great foundation of concepts and make easy for the students to understand basics. You will cover various topics like valency, structure of an atom , isotopes, isobars, mas number and various others. Solutions of Chapter 4 Structure of the Atom NCERT Science Class 9 . Meticulously crafted NCERT solutions to boost your CBSE board exam preparation. Easily score more marks in Science CBSE exam. NCERT Solutions for Class 9 Science (Chemistry) Chapter 4 Structure of the Atom provides detailed answers for all in-text and exercise Questions. These solutions contain an in-depth explanation of each topic involved in the chapter. 8.0 Key Features of CBSE Science Notes for Class 9 Chapter 4 Structure of the Atom Complete Chapter Coverage: Includes all important topics like atomic models, subatomic particles, electronic configuration, valency, and isotopes.