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  2. Shape of the atomic nucleus - Wikipedia

    en.wikipedia.org/wiki/Shape_of_the_atomic_nucleus

    The unusual cosmic abundance of alpha nuclides has inspired geometric arrangements of alpha particles as a solution to nuclear shapes, although the atomic nucleus generally assumes a prolate spheroid shape. Nuclides can also be discus-shaped (oblate deformation), triaxial (a combination of oblate and prolate deformation) or pear-shaped. [7] [8]

  3. Rutherford scattering experiments - Wikipedia

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

    Rutherford assumed that the radius of atoms in general to be on the order of 1010 m and the positive charge of a gold atom to be about 100 times that of hydrogen (100 q e). [39] The atomic weight of gold was known to be around 197 since early in the 19th century. [ 63 ]

  4. Rutherford model - Wikipedia

    en.wikipedia.org/wiki/Rutherford_model

    This was in a gold atom known to be 1010 metres or so in radius—a very surprising finding, as it implied a strong central charge less than 1/3000th of the diameter of the atom. The Rutherford model served to concentrate a great deal of the atom's charge and mass to a very small core, but did not attribute any structure to the remaining ...

  5. Trump wrongly claims Manchester's atom split feat - AOL

    www.aol.com/news/trump-wrongly-claims-manchester...

    Atoms split naturally, but in 1919, Rutherford oversaw the first artificially-induced nuclear reaction in human history at the Victoria University of Manchester's laboratories.

  6. History of atomic theory - Wikipedia

    en.wikipedia.org/wiki/History_of_atomic_theory

    The term "compound atom" was confusing to some of Dalton's contemporaries as the word "atom" implies indivisibility, but he responded that if a carbon dioxide "atom" is divided, it ceases to be carbon dioxide. The carbon dioxide "atom" is indivisible in the sense that it cannot be divided into smaller carbon dioxide particles.

  7. New Zealanders upset after Trump falsely claims US split the ...

    www.aol.com/news/zealanders-upset-trump-falsely...

    Lighter Side. Politics. Science & Tech. Sports. Weather. 24/7 Help. ... harnessed electricity, split the atom, launched mankind into the heavens and put the universe of human knowledge into the ...

  8. Atom - Wikipedia

    en.wikipedia.org/wiki/Atom

    Nuclear fission is the opposite process, causing a nucleus to split into two smaller nuclei—usually through radioactive decay. The nucleus can also be modified through bombardment by high energy subatomic particles or photons. If this modifies the number of protons in a nucleus, the atom changes to a different chemical element. [47] [48]

  9. Discovery of nuclear fission - Wikipedia

    en.wikipedia.org/wiki/Discovery_of_nuclear_fission

    Fission is a nuclear reaction or radioactive decay process in which the nucleus of an atom splits into two or more smaller, lighter nuclei and often other particles. The fission process often produces gamma rays and releases a very large amount of energy, even by the energetic standards of radioactive decay.