Thomson's Model of Atom: The Plum Pudding Model & Radioactivity

The video tutorial covers Thompson's atomic model, describing it as a spherical atom with a positive charge background and electrons spread like watermelon seeds, making the atom neutral. It then introduces radioactivity, explaining that certain elements emit radiations like alpha, beta, and gamma rays. Uranium is highlighted as a radioactive element, emitting these three types of radiation. Alpha rays have low penetration, while gamma rays have high penetration power.

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