• 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 (9,057 words) - 02:14, 6 May 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
  • 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...
    103 KB (11,231 words) - 08:23, 19 May 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
  • 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...
    67 KB (8,832 words) - 20:34, 18 May 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
  • 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) - 10:40, 4 April 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...
    83 KB (10,720 words) - 04:42, 17 May 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...
    13 KB (2,172 words) - 20:28, 15 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 (1,866 words) - 20:02, 10 May 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...
    123 KB (12,596 words) - 20:39, 18 May 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
  • 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 (4,800 words) - 04:39, 10 May 2024
  • Thumbnail for Rutherford model
    atomic nucleus. The Rutherford model was subsequently superseded by the Bohr model. Rutherford overturned Thomson's model in 1911 with his well-known gold...
    10 KB (1,360 words) - 05:59, 25 February 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...
    33 KB (3,828 words) - 14:26, 29 April 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...
    25 KB (2,404 words) - 19:27, 2 March 2024
  • Niels Bohr quoted him in his 1913 paper of the Bohr model of the atom. The influence of the work of Nicholson's nuclear quantum atomic model on Bohr's model...
    87 KB (7,599 words) - 15:02, 4 May 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 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) - 10:21, 18 April 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
  • 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 (1,917 words) - 17:54, 24 April 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 (5,789 words) - 07:10, 19 April 2024
  • Thumbnail for Plum pudding model
    The plum pudding model is an obsolete scientific model of the atom. It was first proposed by J. J. Thomson in 1904 following his discovery of the electron...
    15 KB (1,792 words) - 04:30, 10 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) - 19:32, 30 November 2023
  • 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...
    73 KB (10,096 words) - 14:36, 18 May 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
  • 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 (7,217 words) - 18:54, 19 April 2024
  • volts. The Bohr model, introduced in 1913, was an attempt to provide a theoretical basis for the Balmer series. The assumptions of the model are: The orbiting...
    37 KB (6,109 words) - 05:53, 20 March 2024
  • Bohr model to Hydrogen, and numerous other reasons, lead to an entirely new mathematical model of matter and light: quantum mechanics. Early models to...
    25 KB (2,966 words) - 22:59, 22 April 2024