Description
Class 9 Science Ch-4 Structure of the Atom Handwritten notes by Ashfina Anwar
1. Subatomic Particles of an Atom and their Discovery
2. Thomson’s Atomic Model
3. Rutherford’s Alpha Scattering Experiment
4. Drawbacks of Thomson’s and Rutherford’s Atomic Model.
5. Niels Bohr’s Atomic Model
6. Discovery of Electron
7. Discovery of Proton
8. Discovery of Neutron
9. Properties of Cathode ray
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