• Thumbnail for Bohr model
    In atomic physics, the Bohr model or Rutherford–Bohr model is an obsolete model of the atom, presented by Niels Bohr and Ernest Rutherford in 1913. It...
    64 KB (9,061 words) - 00:22, 15 July 2024
  • Thumbnail for Niels Bohr
    Prize in Physics in 1922. Bohr was also a philosopher and a promoter of scientific research. Bohr developed the Bohr model of the atom, in which he proposed...
    104 KB (11,320 words) - 09:30, 21 June 2024
  • Thumbnail for Bohr–Sommerfeld model
    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...
    12 KB (1,605 words) - 05:10, 28 April 2024
  • It is named after Niels Bohr, due to its role in the Bohr model of an atom. Its value is 5.29177210544(82)×10−11 m.‍ The Bohr radius is defined as a 0...
    7 KB (1,014 words) - 21:51, 31 March 2024
  • In atomic physics, the Bohr magneton (symbol μB) is a physical constant and the natural unit for expressing the magnetic moment of an electron caused by...
    9 KB (890 words) - 06:01, 7 July 2024
  • Thumbnail for History of atomic theory
    to multiply in a way that Bohr's model couldn't explain. In 1916, Arnold Sommerfeld added elliptical orbits to the Bohr model to explain the extra emission...
    70 KB (9,130 words) - 18:32, 17 July 2024
  • did not gain a theoretical underpinning until the Bohr model was introduced. Not only did the Bohr model explain the reasons for the structure of the Rydberg...
    78 KB (9,558 words) - 12:24, 8 May 2024
  • Thumbnail for Atomic orbital
    Atomic orbital (redirect from Bohr orbital)
    wavelength, which appeared in hindsight a dozen years after the Bohr model was proposed. The Bohr model was able to explain the emission and absorption spectra...
    84 KB (10,932 words) - 21:38, 12 July 2024
  • In 1913, Niels Bohr proposed a model of the atom, giving the arrangement of electrons in their sequential orbits. At that time, Bohr allowed the capacity...
    28 KB (2,782 words) - 22:45, 4 May 2024
  • Thumbnail for Atomic number
    Bohr who was at the same lab (and who had used Van den Broek's hypothesis in his Bohr model of the atom), decided to test Van den Broek's and Bohr's hypothesis...
    15 KB (1,948 words) - 20:25, 29 June 2024
  • Thumbnail for Atom
    Atom (section Bohr model)
    Atomic Nucleus and Bohr's Early Model of the Atom". NASA/Goddard Space Flight Center. Archived from the original on 20 August 2007. Bohr, Niels (11 December...
    124 KB (12,754 words) - 02:22, 15 July 2024
  • Arnold Sommerfeld enhancements to the Bohr model of the atom. The main tool of the old quantum theory was the Bohr–Sommerfeld quantization condition, a...
    32 KB (4,825 words) - 14:21, 18 July 2024
  • spectral series, but Niels Bohr later showed that its value could be calculated from more fundamental constants according to his model of the atom. Before the...
    12 KB (2,087 words) - 08:30, 19 June 2024
  • Thumbnail for Rutherford model
    would be known as the atomic nucleus. The Rutherford model was subsequently superseded by the Bohr model. In the same paper that JJ Thomson announced his...
    11 KB (1,440 words) - 23:23, 19 July 2024
  • this system is the radius of the first Bohr orbit and their velocity is the electron velocity in Bohr's model of the first orbit. In 1959, Shull and Hall...
    24 KB (2,359 words) - 00:00, 29 June 2024
  • Thumbnail for Aage Bohr
    connection". His father was Niels Bohr. Starting from Rainwater's concept of an irregular-shaped liquid drop model of the nucleus, Bohr and Mottelson developed...
    25 KB (2,436 words) - 20:52, 19 June 2024
  • Thumbnail for Franck–Hertz experiment
    proved to be consistent with the Bohr model for atoms that had been proposed the previous year by Niels Bohr. The Bohr model was a precursor of quantum mechanics...
    34 KB (3,827 words) - 12:55, 28 June 2024
  • moment proposed by Niels Bohr Bohr model, an atomic theory due to Niels Bohr Bohr radius, a radius of atomic orbit in Bohr model Bohrium, a chemical element...
    1 KB (231 words) - 21:27, 10 July 2023
  • Thumbnail for Hydrogen spectral series
    electron, each with its own energy. These states were visualized by the Bohr model of the hydrogen atom as being distinct orbits around the nucleus. Each...
    19 KB (1,910 words) - 00:34, 16 July 2024
  • Thumbnail for Bohr model of the chemical bond
    In addition to the model of the atom, Niels Bohr also proposed a model of the chemical bond. He proposed this model first in the article "Systems containing...
    4 KB (444 words) - 09:08, 28 February 2024
  • Thumbnail for Plum pudding model
    alternative model for the atom featuring a compact nuclear center. This model was taken up by Niels Bohr as the basis of the first quantum atom model. Thomson's...
    38 KB (5,163 words) - 18:00, 22 July 2024
  • Thumbnail for Hydrogen atom
    Hydrogen atom (category Quantum models)
    shortcomings were resolved by Arnold Sommerfeld's modification of the Bohr model. Sommerfeld introduced two additional degrees of freedom, allowing an...
    38 KB (5,781 words) - 00:39, 7 June 2024
  • Thumbnail for Fine-structure constant
    named by Arnold Sommerfeld, who introduced it in 1916 when extending the Bohr model of the atom. α quantified the gap in the fine structure of the spectral...
    63 KB (7,098 words) - 19:36, 16 July 2024
  • the development of Niels Bohr 's atomic model and Bohr quoted him in his 1913 paper of the Bohr model of the atom. Bohr's model went beyond Planck's abstract...
    75 KB (6,419 words) - 15:53, 18 July 2024
  • Thumbnail for Ionization energy
    the hydrogen atom ( Z = 1 {\displaystyle Z=1} ) can be evaluated in the Bohr model, which predicts that the atomic energy level n {\displaystyle n} has energy...
    51 KB (5,883 words) - 15:10, 14 May 2024
  • and the atom would cease to exist. This model is clearly wrong. In 1913, Niels Bohr refined the Rutherford model by stating that the electrons existed in...
    3 KB (463 words) - 05:11, 25 June 2024
  • Thumbnail for Schrödinger equation
    discrete energy levels, and de Broglie reproduced the Bohr model formula for the energy levels. The Bohr model was based on the assumed quantization of angular...
    74 KB (10,232 words) - 01:58, 6 July 2024
  • classical prediction (valid for large wavelength). Niels Bohr used a similar idea, while developing his model of the atom. In 1913, he provided the first postulates...
    17 KB (2,113 words) - 23:48, 30 March 2024
  • semiclassical Bohr model of the atom, distinguishing between different energy levels. With the development of modern quantum mechanics, the simple Bohr model was...
    8 KB (1,072 words) - 13:16, 6 April 2024
  • nucleus, which is predicted to push the limit further to Z ≈ 173. The Bohr model exhibits difficulty for atoms with atomic number greater than 137, for...
    148 KB (15,128 words) - 09:22, 21 July 2024