Bohr-Sommerfeld model of atom
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Bohr model — In atomic physics, the Bohr model created by Niels Bohr depicts the atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus mdash;similar in structure to the solar system, but with… … Wikipedia
Sommerfeld , Arnold Johannes Wilhelm — (1868–1951) German physicist Sommerfeld, the son of a physician, was born in Königsberg (now Kaliningrad in Russia) and educated at the university in his native city. He later taught at Göttingen, Clausthal, and Aachen before being appointed to… … Scientists
atom — /at euhm/, n. 1. Physics. a. the smallest component of an element having the chemical properties of the element, consisting of a nucleus containing combinations of neutrons and protons and one or more electrons bound to the nucleus by electrical… … Universalium
Sommerfeld, Arnold — ▪ German physicist born Dec. 5, 1868, Königsberg, Prussia [now Kaliningrad, Russia] died April 26, 1951, Munich German physicist whose atomic (atom) model permitted the explanation of fine structure spectral lines. After studying… … Universalium
Plum pudding model — A schematic presentation of the plum pudding model of the atom. In Thomson s mathematical model the corpuscles (or modern electrons) were arranged non randomly, in rotating rings. The plum pudding model of the atom by J. J. Thomson, who… … Wikipedia
Cubical atom — The cubical atom was an early atomic model in which electrons were positioned at the eight corners of a cube in a non polar atom or molecule. This theory was developed in 1902 by Gilbert N. Lewis and published in 1916 in the famous article The… … Wikipedia
Free electron model — In three dimensions, the density of states of a gas of fermions is proportional to the square root of the kinetic energy of the particles. In solid state physics, the free electron model is a simple model for the behaviour of valence electrons in … Wikipedia
Drude model — electrons (shown here in blue) constantly bounce between heavier, stationary crystal ions (shown in red). The Drude model of electrical conduction was proposed in 1900[1][2] by Paul … Wikipedia
Bohr , Niels Hendrik David — (1885–1962) Danish physicist Niels Bohr came from a very distinguished scientific family in Copenhagen, Denmark. His father, Christian, was professor of physiology at Copenhagen and his brother Harald was a mathematician of great distinction.… … Scientists
Atom — Eine Illustration des Heliumatoms im Grundzustand, die den Atomkern (rosa) und die Aufenthaltswahrscheinlichkeit der Elektronen (schwarz) darstellt. Der Heliumkern (oben rechts) ist in Wirklichkeit kugelsymmetrisch; das ist bei manchen größeren… … Deutsch Wikipedia
Niels Bohr — Born Niels Henrik David Bohr 7 October 1885(1885 10 07) Copenhagen, Denmark … Wikipedia
