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The Bohr model is a relatively primitive model of the hydrogen atom, compared to the valence shell model. As a theory, it can be derived as a first-order approximation of the hydrogen atom using the broader and much more accurate quantum mechanics and thus may be considered to be an obsolete scientific theory.
The Bohr–Sommerfeld model (also known as the Sommerfeld model or Bohr–Sommerfeld theory) was an extension of the Bohr model to allow elliptical orbits of electrons around an atomic nucleus. Bohr–Sommerfeld theory is named after Danish physicist Niels Bohr and German physicist Arnold Sommerfeld. Sommerfeld argued that if electronic orbits ...
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Fowler was initially skeptical [11] but was ultimately convinced [12] that Bohr was correct, [7] and by 1915 "spectroscopists had transferred [the Pickering series] definitively [from hydrogen] to helium." [1] [13] Bohr's theoretical work on the Pickering series had demonstrated the need for "a re-examination of problems that seemed already to ...
Niels Henrik David Bohr (Danish: [ˈne̝ls ˈpoɐ̯ˀ]; 7 October 1885 – 18 November 1962) was a Danish physicist who made foundational contributions to understanding atomic structure and quantum theory, for which he received the Nobel Prize in Physics in 1922. Bohr was also a philosopher and a promoter of scientific research.
Atomic orbitals are basic building blocks of atomic orbital model (or electron cloud or wave mechanics model), a modern framework for visualizing submicroscopic behavior of electrons in matter. In this model electron cloud of an atom may be seen as being built up (in approximation) in an electron configuration that is a product of simpler ...
Description. Stylised atom with three Bohr model orbits and stylised nucleus.svg. Stylised atom. Blue dots are electrons, red dots are protons and black dots are neutrons. Date. 14 February 2007. Source. Own work based on: of Image:Stylised Lithium Atom.png by Halfdan. Author.
The Bohr model was developed beginning 1913, and championed the idea of electron configurations that determine chemical properties. Bohr proposed that elements in the same group behaved similarly because they have similar electron configurations, and that noble gases had filled valence shells; [101] this forms the basis of the modern octet rule ...