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  2. Rutherford model - Wikipedia

    en.wikipedia.org/wiki/Rutherford_model

    In a May 1911 paper, [8] Rutherford presented his own physical model for subatomic structure, as an interpretation for the unexpected experimental results. [3] In it, the atom is made up of a central charge (this is the modern atomic nucleus, though Rutherford did not use the term "nucleus" in his paper). Rutherford only committed himself to a ...

  3. Rutherford scattering experiments - Wikipedia

    en.wikipedia.org/wiki/Rutherford_scattering...

    The prevailing model of atomic structure before Rutherford's experiments was devised by J. J. Thomson. [1]: 123 Thomson had discovered the electron through his work on cathode rays [2] and proposed that they existed within atoms, and an electric current is electrons hopping from one atom to an adjacent one in a series.

  4. Discovery of the neutron - Wikipedia

    en.wikipedia.org/wiki/Discovery_of_the_neutron

    The discovery of the neutron and its properties was central to the extraordinary developments in atomic physics in the first half of the 20th century. Early in the century, Ernest Rutherford developed a crude model of the atom, [1]: 188 [2] based on the gold foil experiment of Hans Geiger and Ernest Marsden.

  5. History of atomic theory - Wikipedia

    en.wikipedia.org/wiki/History_of_atomic_theory

    Rutherford's model, being supported primarily by scattering data unfamiliar to many scientists, did not catch on until Niels Bohr joined Rutherford's lab and developed a new model for the electrons. [56]: 304 Rutherford model predicted that the scattering of alpha particles would be proportional to the square of the atomic charge.

  6. Ernest Rutherford - Wikipedia

    en.wikipedia.org/wiki/Ernest_Rutherford

    Under his leadership, the neutron was discovered by James Chadwick in 1932. In the same year, the first controlled experiment to split the nucleus was performed by John Cockcroft and Ernest Walton, working under his direction. In honour of his scientific advancements, Rutherford was recognised as a baron of the United Kingdom.

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  8. Bohr model - Wikipedia

    en.wikipedia.org/wiki/Bohr_model

    In atomic physics, the Bohr model or Rutherford–Bohr model was the first successful model of the atom. Developed from 1911 to 1918 by Niels Bohr and building on Ernest 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.

  9. Dying To Be Free - The Huffington Post

    projects.huffingtonpost.com/projects/dying-to-be...

    He cut his bangs so they no longer shielded his eyes, and his manner became more direct. Late one evening, in the second-floor library, Hamm gave a new resident a pep talk. The newbie had detoxed at a separate facility, but during his three-week wait to enter Grateful Life he had relapsed.