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In 1913, the physicist Niels Bohr introduced a model of the atom that contributed a greater understanding to its structure and quantum mechanics. Atoms are the basic units of chemical elements and were once believed to be the smallest indivisible structures of matter.
Bohr's model of hydrogen is based on the nonclassical assumption that electrons travel in specific shells, or orbits, around the nucleus. Bohr's model calculated the following energies for an electron in the shell, n. : E ( n) = − 1 n 2 ⋅ 13.6 eV.
In 1913, Niels Bohr determined that electrons don’t radiate energy as they circle the nucleus. They travel around it in fixed paths, or discrete orbits, similar to the planets orbiting the Sun. Each orbit corresponds to a defined energy level. The lowest, or ground state, is closest to the nucleus.
Jul 16, 2020 · Danish physicist Niels Bohr proposed the model in 1913. The Bohr model was the first atomic model incorporating some quantum mechanics. Earlier models were the cubic model (1902), plum-pudding model (1904), Saturnian model (1904), and Rutherford model (1911). Ultimately, models based entirely on quantum mechanics replaced the Bohr model.
Jul 12, 2013 · In July of 1913, Danish physicist Niels Bohr published the first of a series of three papers introducing this model of the atom, which became known simply as the Bohr atom. Bohr, one of the pioneers of quantum theory, had taken the atomic model presented a few years earlier by physicist Ernest Rutherford and given it a quantum twist.
Bohr developed the Bohr model of the atom, in which he proposed that energy levels of electrons are discrete and that the electrons revolve in stable orbits around the atomic nucleus but can jump from one energy level (or orbit) to another. Although the Bohr model has been supplanted by other models, its underlying principles remain valid.
After taking his doctorate in physics in 1911, Niels Bohr went to study in England, where he developed his famous atomic mode.
