Dalton, , Atom was indivisible. , Atoms of a given element are identical. , Solid Sphere Model, Thomson, , Experimented using the cathode ray. , Discovered the electron. , Plum Pudding Model, Rutherford, He experimented using Gold Foil, Discovered the positively charged nucleus, , Nuclear Model, Bohr, , Electrons have a fixed amount of energy in an orbit. , Electron in an orbit close to the nucleus are on their lower energy state. , Planetary Model, Schrödinger, Electrons move in waves, It is impossible to know the exact location of the electrons, , Quantum Model.

Atomic Theory

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