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The History of Atomic Theory

  • John Dalton

    John Dalton
    He was a Chemisthe did some research on colour blindness and he came to the conclusion that you can get it from inheritance. Through this he proved that when genetic analysis from his own eye tissue revealed that he was missing the photoreceptor for recognising the colour green. It can be referred to as “Daltonism”.He had and interest in atmospheric pressures, which then led him into looking closer at gases.
  • Henry Moseley

    Henry Moseley
    • His fields included Physics and Chemistry
    • He experimented with β-particles in 1912
    • He measured x-ray spectra of different chemical elements by using the diffraction of crystals in 1913
    • He put the elements in atomic order based on the atomic number and the x-ray wavelength in 1914-
    • He was the one to discover of isotopes for the elements.
  • Murray Gell-Mann

    Murray Gell-Mann
    He received a Nobel prize in physics in 1969 for his work on the theory of elementary particles and their interactionsHe developed the V-A theory of the weak interaction In the 1960’s he introduced current algebra.He and Maurice Lèvy developed the sigma model of pions which describes low-energy pion interactions.He is know for keeping the string theory know throughout the 1970’s and early 1980’s.
  • Marie Curie

    Marie Curie
    She was a chemist and physicistShe is famous for her developing research in radioactivityShe was the first women to win a Nobel prize which was in Physics in 1903 she also was awarded the Davy Medal in 1903, the Matteucci Medal in 1904 and a Nobel prize in Chemistry in 1911. She made the discovery of the elements polonium and radium and under her direction she the world's first studies were conducted into the treatment of neoplasms.
  • Ernest Rutherford

    Ernest Rutherford
    He was a physicist and chemistHe is know as the father of nuclear physics Earlier in his life he discovered the concept of radioactive half-life, and he then proved that radioactivity involved the transmutation of one chemical element to another and named alpha and beta radiation.He was awarded the Nobel prize in Chemistry in 1908 (which was given for the things above) .He was also apart of finding the effects of x-ray gases with J.J Thomson, which then led onto the discovery of electron.
  • J.J Thomson

    J.J Thomson
    He won the Adams Prize in 1884 from his interest in atomic structure which was reflected in his Treatise on the Motion of Vortex Rings. He was awarded the Hodgkins Medal in 1902, the Franklin Medal and Scott Medal in 1923, and the Faraday Medal in 1938.In 1886 his Application of Dynamics to Physics and Chemistry appeared and in 1892. He had produced many different books /original study on his thoery from 1895-1921.
  • Francis Aston

    His fields were physics and chemistry which won him a Nobel prize in 1922.His research was based on physics and the discovery of x-rays and radioactivity in the mid 1890’s.He studied the currents through a gas- filled tube, after this it led him to conduct self-made discharge tubes, and then it was onto the investigations of the volume of the Aston Dark space.All this happened but his research was interrupted by the War of 1914-1918 and during that time he worked at Royal Aircraft Establishm.
  • Erwin Schrodinger

    He was a physicist that was involved in a number of the findings of results in the field of quantum theory which was the basis of wave mechanics.He was an author in many different works in the field of physicsHe was awarded the Nobel prize in 1933 and the Max Planck Medal in 1937He is know for Schrodinger method, Schrodinger cat, Schrodinger equation, Schrodinger functional, Schrodinger group, Schrodinger picture, Schrodinger field, and many more.
  • Niels Bohr

    He was involved in the understanding of atomic structure and quantum mechanics which won him the Nobel prize in physics in 1922He developed the Bohr model for the atom with the atomic nucleus in the centre and the electrons in an orbit around them. He is know for things like the atomic theory, the BKS theory, Energy level, Electron Configuration, Fixed Orbit and Hydrogen Spectral series and many more.
  • James Chadwick

    James Chadwick
    He was a physicistHe was awarded the Hughes Medal in 1932, the Nobel Prize in physics in 1935, the Knight Bachelor in 1945, the Copley Medal in 1950, the Franklin Medal in 1951 and the Companion of Honour in 1970.He is know for the discovery of the Neutron in 1932 and the Manhattan Project which was during World War 2.He carried out his research so he was able to build an atomic bomb as part of the Tube Alloys project.