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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. CBSE Class 9 Science Notes Chapter 4 Structure of the Atom Facts that Matter John Dalton assumed that atom is indivisible. In 1866 E. Goldstein discovered the presence of new radiations in a gas discharge tube and called them canal rays. These rays were positively charged radiations which led to the discovery of sub-atomic particle called proton. In 1900 J.J. Thomson discovered the sub-atomic particle—the electron with a negative charge. Structure of an Atom 2.Rutherford’s model of an ... NCERT Solutions Class 9 Science Chapter 4 Structure of the Atom – Here are all the NCERT solutions for Class 9 Science Chapter 4. This solution contains questions, answers, images, step by step explanations of the complete Chapter 4 titled Structure of the Atom of Science taught in class 9 . 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.
