Solid Sphere Model, Atoms are spheres, John Dalton, Shows different elements have different atoms, Does not explain the existence of electrons, Plum Pudding Model, Atoms are positive spheres with negative electrons scattered in them, J. J. Thomson, Shows how atoms have electrons, Does not explain Rutherford's observations, Nuclear Model, Atoms have a small positive nucleus with negative electrons orbiting it, Ernest Rutherford, Shows that positive charge is in a central nucleus, Does not explain why electrons orbit the nucleus

Atomic Models

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