![]() ![]() (starting from the bottom, closest to the nucleus, electrons could be at n 1, 2, 3, etc.) As they get 'excited', they move up. With orbitals (the Quantum Mechanical Model), electrons change positions With the Bohr Model, electrons are at a fixed position. Bohr model is utilized for giving a lucid explanation to the features of an atom. With orbits (the Bohr Model) elections are at a fixed positions. ![]() "Sommerfeld formula and Dirac's theory" (PDF). Niels Bohr proposed a new atomic model by giving a better explanation to the Rutherford model. In that model, the positive charges made up the pudding, while the electrons acted as. ![]() Thomson, the model suggested that the atom was a spherical ball of positive charge, with negatively charged electrons scattered evenly throughout.
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