• 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...
    43 KB (6,145 words) - 03:00, 29 July 2025
  • from Thomson's plum pudding model and Nagaoka's Saturnian model.: 303  He shows that the scattering results predicted by Thomson's model are also explained...
    94 KB (12,508 words) - 16:52, 2 August 2025
  • Thumbnail for Rutherford model
    alpha particle recoil than J. J. Thomson's plum pudding model of the atom could explain. Thomson's model had positive charge spread out in the atom....
    15 KB (1,734 words) - 14:46, 30 July 2025
  • Thumbnail for Bohr model
    Rutherford's nuclear model, it supplanted the plum pudding model of J. J. Thomson only to be replaced by the quantum atomic model in the 1920s. It consists...
    74 KB (10,217 words) - 15:42, 31 July 2025
  • Thumbnail for Atomic nucleus
    Atomic nucleus (redirect from Nuclear model)
    1911, as a result of Ernest Rutherford's efforts to test Thomson's "plum pudding model" of the atom. The electron had already been discovered by J. J. Thomson...
    33 KB (3,945 words) - 03:11, 28 June 2025
  • Thumbnail for Atomic orbital
    predicted a different model for electronic structure. Unlike the plum pudding model, the positive charge in Nagaoka's "Saturnian Model" was concentrated into...
    84 KB (10,940 words) - 15:49, 28 July 2025
  • Thumbnail for Nuclear physics
    the beginning of the 20th century the accepted model of the atom was J. J. Thomson's "plum pudding" model in which the atom was a positively charged ball...
    43 KB (5,094 words) - 20:33, 24 May 2025
  • been impossible according to the then current Plum pudding model of the atom.: 4  According to this model, by JJ Thomson, the atom consists of a sphere...
    70 KB (9,870 words) - 23:27, 22 July 2025
  • atom" hypothesis based on the vortex atomic theory, in favour of his plum pudding model. Tait's work especially founded the branch of topology called knot...
    9 KB (1,139 words) - 09:24, 5 June 2025
  • Thumbnail for History of atomic theory
    have a surplus or shortage of electrons. Thomson's model is popularly known as the plum pudding model, based on the idea that the electrons are distributed...
    79 KB (10,120 words) - 00:41, 31 July 2025
  • Thumbnail for Hantaro Nagaoka
    scattered through it like plums in a pudding, giving rise to the term plum pudding model. Nagaoka rejected Thomson's model on the grounds that opposite...
    10 KB (1,008 words) - 15:27, 7 July 2025
  • Thumbnail for Atom
    Atom (section Bohr model)
    Thomson's model is popularly known as the plum pudding model, though neither Thomson nor his colleagues used this analogy. Thomson's model was incomplete...
    126 KB (12,982 words) - 00:39, 17 July 2025
  • Thomson to describe particles now known to be electrons, in his plum pudding model A small free-floating biological cell, especially a blood cell A nerve...
    985 bytes (170 words) - 15:19, 8 October 2024
  • Thumbnail for J. J. Thomson
    this "plum pudding model", the electrons were seen as embedded in the positive charge like raisins in a plum pudding (although in Thomson's model they...
    57 KB (5,908 words) - 16:14, 3 August 2025
  • Thomson posed the problem in 1904 after proposing an atomic model, later called the plum pudding model, based on his knowledge of the existence of negatively...
    94 KB (2,928 words) - 21:51, 16 June 2025
  • Thumbnail for Dalmatian dog
    and gender using ordinary logistic and generalized random litter effect models". The Veterinary Journal. 154 (2). Elsevier BV: 121–133. doi:10.1016/s1090-0233(97)80050-0...
    32 KB (3,580 words) - 06:43, 27 July 2025
  • first atomic model with subatomic constituents, using circulating electrons in a background of positive charge, the so-called plum pudding model. Thomson's...
    77 KB (9,422 words) - 13:00, 17 July 2025
  • Thumbnail for Niels Bohr
    whose 1911 small central nucleus Rutherford model of the atom had challenged Thomson's 1904 plum pudding model. Bohr received an invitation from Rutherford...
    106 KB (11,428 words) - 09:04, 22 July 2025
  • backscattering from a gold foil sample. According to the then-dominant plum-pudding model of the atom, in which small negative electrons were spread through...
    27 KB (3,861 words) - 19:58, 23 May 2025
  • 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...
    3 KB (412 words) - 15:19, 26 May 2025
  • Banana pudding Bread pudding Bread and butter pudding Butterscotch, pudding Cabinet pudding Chocolate pudding Christmas pudding Plum pudding Clootie...
    2 KB (332 words) - 09:28, 24 March 2022
  • Thumbnail for History of chemistry
    very thin gold foil in an evacuated chamber. Under the prevailing plum pudding model, the alpha particles should all have passed through the foil and hit...
    158 KB (19,509 words) - 10:31, 28 July 2025
  • Thumbnail for Periodic table
    model, Haas used a single-electron configuration based on the classical atomic model proposed by J. J. Thomson in 1904, often called the plum-pudding...
    251 KB (27,139 words) - 04:45, 30 July 2025
  • concentrated in a small, central atomic nucleus, disproving the then-popular plum pudding model of the atom. Eddington experiment (1919): Arthur Eddington leads an...
    20 KB (2,455 words) - 06:14, 3 June 2025
  • Thumbnail for List of superseded scientific theories
    atomic isotopes). Plum pudding model of the atom—assuming the protons and electrons were mixed together in a single mass Rutherford model of the atom with...
    26 KB (3,004 words) - 18:23, 28 July 2025
  • Thumbnail for Nuclear chemistry
    foil experiment) which showed that the 'plum pudding model' of the atom was wrong. In the plum pudding model, proposed by J. J. Thomson in 1904, the atom...
    39 KB (5,202 words) - 17:40, 17 July 2025
  • experiments. He proposes the Rutherford model of the atom and demonstrates that J. J. Thomson's plum pudding model is incorrect. Charles Wilson finishes...
    11 KB (1,157 words) - 05:02, 19 June 2025
  • Cambridge. J. J. Thomson proposes the plum pudding model for the atom. Hantaro Nagaoka develops the Saturnian model for the atom. July 4 – Piero Ginori...
    10 KB (962 words) - 17:02, 16 June 2024
  • Thumbnail for University of Tokyo
    Physics, devised the Saturnian model of the atom. Contrasting with J. J. Thomson's then-popular plum pudding model, Nagaoka's model proposed an atomic structure...
    147 KB (12,429 words) - 03:25, 21 June 2025
  • Thumbnail for John Dalton
    John Dalton (redirect from Dalton's model)
    language, but he never acknowledged Bryan's anticipation of his caloric model. However, the essential novelty of Dalton's atomic theory is that he provided...
    49 KB (5,513 words) - 10:00, 29 June 2025