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Learn about the evolution of atomic models from ancient Greece to modern physics. Explore the key features and experiments of Dalton, Thomson, Rutherford, and Bohr.
Learn about the Bohr model of the atom, proposed by Niels Bohr in 1913, which incorporated quantum theory and explained the spectral lines of hydrogen. The model describes the electrons as orbiting the nucleus in discrete orbits and emitting or absorbing energy when they jump between them.
Niels Bohr proposed a model of the atom and a model of the chemical bond. According to his model for a diatomic molecule, the electrons of the atoms of the molecule form a rotating ring whose plane is perpendicular to the axis of the molecule and equidistant from the atomic nuclei.
5 Μαΐ 2019 · Learn about the three parts of an atom: protons, neutrons, and electrons. Find out how atoms bond to form elements, compounds, and molecules.
Learn about the Rutherford model of the atom, which envisioned the atom as a miniature solar system with a positive nucleus and negative electrons. Find out how Rutherford disproved the Thomson model with his gold-foil experiment and how Bohr improved his model with quantum mechanics.
16 Ιουλ 2020 · Learn about the Bohr model, a cake or planetary model of the atom based on quantum theory. Find out its key points, applications, problems, and improvements.
18 Μαΐ 2021 · Learn how atoms are composed of electrons, protons, and neutrons, and how they are arranged in a nuclear model. Explore the modern atomic theory and the concept of isotopes.
