History of Atomic Theory

  • John Dalton

    John Dalton
    John Dalton was an English chemist, meteorologist and physicist. Although, he is best known for his pioneering work in the establishment of modern atomic theory and his research into colour blindness. He is sometimes referred to as Daltonism, in his honour.
  • Francis Aston

    Francis Aston
    Francis Aston, winning a scholarship from the University of Birmingham was able to pursue his research in physics, succeeding in the discovery of X-rays and radioactivity in the mid-1890s. He also studied the flow of current through a gas-filled tube. The investigation, performed with self-made discharge tubes, lead to explore the volume of the Aston dark space.
  • J.J Thompson:

    J.J Thompson:
    In 1897, J.J Thomson proved that cathode rays were composed of a previously unknown negatively charged particle, as a result he is credited with the discovery of the subatomics particle. He is also credited with finding the first evidence for isotopes of a stable (non-radioactive) element in 1913, as part of his examination into the composition of canal rays (positive ions). He invented the mass spectrometer. In 1906 he was awarded the Noble Prize in Physics for the discovery of the electron and
  • Marie Curie

    Marie Curie
    Marie Curie was a Polish and established-French physicist and chemist who conducted pioneering research on radioactivity. The first woman to win a Nobel Prize was Marie Curie. She is the only woman to win in two fields, and the only person to win in multiple sciences.
  • Henry Moseley

    Henry Moseley
    An English physicist named Henry Moseley discovered the practical and chemical concept of the atomic number through Moseley's law in X-ray spectra. Moseley's Law explained many concepts in chemistry by classifying the chemical elements of the periodic table in a logical order based on their physics.
  • Ernest Rutherford:

    Ernest Rutherford:
    Ernest Rutherford was originally from new Zealand chemist. He helped pioneer physics. He also won a nobel prize in Chemistry and made multiple contributions to science. He worked closely with a number of students that he taught went on to make their own significant discoveries in science. He is credited with first "splitting the atom" in 1917 in a nuclear reaction between nitrogen and alpha particles and also discovered and named the proton.
  • Niels Bohr

    Niels Bohr
    He was a Danish physicist who made foundational contributions to understanding atomic structure and quantum theory, for which he received the Nobel Prize in Physics in 1922. Bohr was also a philosopher and a promoter of scientific research
    Niels Bohr was a Danish physicist. He made foundational contributions to understanding the atomic structure and quantum theory in Physics. He received the 1922 Nobel Prize for Physics. Niels Bohr was a philosopher.
  • Erwin Schrodinger

    Erwin Schrodinger
    Erwin Schrodinger is a Nobel Prize-winning Austrian physicist, who developed a number of basic results in the field of quantum theory, which formed the basis of wave mechanics. She developed a number of basic results in the field of quantum theory in between the years 1926 and 1932.
  • James Chadwick

    James Chadwick
    James Chadwick was an English Physicist. He was awarded the nobel prize in physics in 1935 for the discovery of neutron he made in 1932. He wrote a copy of the MAUD Report. The copy of the report inspired the U.S government to start a serious atomic bomb research effort. He was also the head of British scientists. They worked on the Manhattan Project during the world war 2. He was given the name knight in England in November 1945 for his achievements in physics.
  • Murray Gell-mann

    Murray Gell-mann
    An American physicist named Murray Gell-Mann received the 1969 Nobel Prize in physics for his work on the theory of elementary particles. He is the Robert Andrews Millikan Professor of Theoretical Physics Emeritus.