In atomic physics, the Bohr model depicts an atom as a small, positively charged nucleus surrounded by electrons. These electrons travel in circular orbits around the nucleus—similar in structure to the solar system, except electrostatic forces rather than gravity provide attraction. The Bohr model was an improvement on the earlier cubic model , the plum-pudding model , the Saturnian model , and the Rutherford model Since the Bohr model is a quantum-physics-based modification of the Rutherford model, many sources combine the two: the Rutherford—Bohr model.
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Niels Bohr was an accomplished physicist who came up with a revolutionary theory on atomic structures and radiation emission. He won the Nobel Prize in physics for his ideas and years later, after working on the Manhattan Project in the United States, called for responsible and peaceful applications of atomic energy across the world. Niels Bohr was born on October 7, , in Copenhagen, Denmark, to mother Ellen Adler, who was part of a successful Jewish banking clan, and father Christian Bohr, a celebrated physiology academic. The young Bohr eventually attended Copenhagen University, where he received his master's and doctorate in physics by
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