J. J Thomson: The Discovery Of Atoms

Good Essays
J.J Thomson was born in Cheetham Hill, a suburban area in Manchester, England on December 18, 1856. Thomson was a Nobel Prize winning physicist with his research that helped discover the electrons of an atom. J.J Thomson full name was Joseph John Thomson, He was an English physicist and mathematician. Joseph Thomson was considered to be a prodigy at his time, becoming the first to be 14 and attending college. Joseph Thomson’s father was a book seller who intended Thomson to become an engineer. Thomson got an apprenticeship at an engineer firm but after 2 years, his father died. His family was unable to pay for the apprenticeship for engineering so Thomson had to leave. Thomson was sent to Owens College, which had a great science faculty, at …show more content…
Thomson’s work on gas discharges led to the Astons mass spectrometer where he then discovered about isotopes. Thomson was later received a Nobel Prize in 1906 for his theoretical and experimental research on the discharge of electricity though gas. The discovery of electron helped many/connected the discovery of many other new researches. There were many experiments before the discovery of electrons but first we need to understand how his experiment works. First Gas is a poor conductor under normal condition but if the gas is in a glass container as a reduced pressure, then the voltage is then applied across two electrodes inside the container, a discharge will then occur allowing the gas to become conductive. One of the most important experiment in the discovery of electrons was the Cathode Rays tube. The above experiment reveals bright lines are observed to come from the cathode, negative electrode also known as Cathode Rays. Before there were many controversy over the nature of cathode rays. Many German physicists thought that cathode rays was some form of radiation while most of British physicists believed that the Cathode Ray was a stream of negative charged …show more content…
His Father Joseph James Thomson owned a specialist bookshop that has been owned from the past 3 generations. His mother on the other hand owned a cotton company. His personal life was also very interesting, in 1890 J.J Thomson was married to Rose Paget, one of his students in his class. Thomson had 2 children’s, a daughter and a son. His daughter name was Joan and his son was George Paget Thomson, who later became a physicist also win a Nobel Prize as well. George Paget Thomson was an English physicist and Nobel Prize winner for his discovery of the wave properties of the electron by

Related Documents

  • Decent Essays

    As technology progressed so did the curiosity of the human on the theory of what made the universe. J.J. Thomson then changed the way in which atoms were understood when he discovered the electron and indirectly discovered the proton. Which led to the plum pudding model. However, this model would come under fire. Not soon after, his pupil Ernst Rutherford would disprove his model by discovering the positively charged nucleus with his gold foil experiment.…

    • 1500 Words
    • 6 Pages
    Decent Essays
  • Decent Essays

    Most of the particles proved to fit this theory by passing through the gold foil, however, some were scattered and deflected backwards. Rutherford had to alter the previous model to fit with his newfound discoveries. The reason the majority of the alfa particles were able to pass through the sheet of gold foil without being deflected was because the atom consists of mostly empty space. Rutherford also believed there had to have been a massive positively charged particle in the center of the atom and that the electrons revolved around the central particle instead of being dispersed throughout. These particles are responsible for the scattering deflecting of the alfa particles when shot through the gold foil.…

    • 1041 Words
    • 5 Pages
    Decent Essays
  • Decent Essays

    Once he was finally free, he returned to England to work with Ernest Rutherford in Cavendish Laboratory at Cambridge. Together, they were an unstoppable duo, inventing a new, complex idea that was later named the neutron. In the beginning of the Twentieth Century the atom was imagined of two types of particles: protons and electrons. The problem with thinking in these terms was that the atomic mass measurements were not matching up with the atomic number, or protons in the nucleus of an atom. An example of this is the helium atom who has the atomic mass of 4, but a positive charge of two and negative charge of two.…

    • 728 Words
    • 3 Pages
    Decent Essays
  • Decent Essays

    Rutherford is also famous for his experiment of gold foil. Rutherford 's experiments, in which he bombarded gold foil with particles (alpha particles) from a radioactive source, led to the understanding of the atom. “What he noted was that although most of the particles passed right through the gold foil, a very small percentage (approximately 1 in 8000) would "bounce back". What exactly did this imply?”(The Discovery of Radioactivity). This, in mister Rutherford`s head, meant that matter was made of empty space, but there is a tiny dense portion of matter that deflects particles.…

    • 1675 Words
    • 7 Pages
    Decent Essays
  • Decent Essays

    Erwin Schrödinger, an Austrian born chemist, gained his famed for his contributions to quantum mechanics. Some of his contributions to chemistry and quantum mechanics were his books describing his techniques and basic info behind his work, his paradox, Schrodinger’s cat, which created a lot of new discoveries in chemistry, and his equation that changed how many people viewed the atom and its electrons. At at young age, Schrodinger was strongly influenced by the philosophy of Austrian philosopher Arthur Schopenhauer (Mastin, Luke. "Erwin Schrödinger - Important Scientists - The Physics of the Universe."). Born on August 12, 1887, Erwin Schrodinger grew up in Vienna and attended the Akademisches Gymnasium High School in his teenage years and…

    • 1010 Words
    • 5 Pages
    Decent Essays
  • Decent Essays

    Thomson was the next major innovator of the quantum atomic model. Thomson’s quantum atomic model is known as the Plum Pudding Model. Thomson theorized that negatively charged particles, called electrons, were suspended in a positively charged solution. Thomson’s theory was proven when he tested his hypothesis by what became known as the Cathode Ray Tube Experiment. During this experiment Thomson thought that electrons were evenly distributed throughout the atom.…

    • 817 Words
    • 4 Pages
    Decent Essays
  • Decent Essays

    Otto Hahn Accomplishments

    • 458 Words
    • 2 Pages

    Otto Hahn was a great scientist that did multiple things to advance the scientific field. Otto Hahn was born March 8, 1879 and died on July 28, 1968. In his early years he was debating being an architect but later went on to become a German chemist. Hahn attended the University of Marburg and recieved his doctorate degree in 1901. He served one year in the military.…

    • 458 Words
    • 2 Pages
    Decent Essays
  • Decent Essays

    An atom made of thousands of electrons would have a very high, negative electric charge; however, this was not practical, as atoms typically have no charge. In 1906, Thomson suggested that atoms contained far fewer electrons, a number roughly equal to the atomic number. These electrons must have been balanced by a positive charge. Thus, Thomson began studying positively charged ions as he channeled a stream of ionized neon through a magnetic and electric field. He used deflection techniques to measure the charge to mass ratio and discovered that neon was composed of two different kinds of atoms.…

    • 1179 Words
    • 5 Pages
    Decent Essays
  • Decent Essays

    Niels Henrick David Bohr was born in Copenhagen, Denmark on 1885. In 1911 he received his Ph.D. from Copenhagen University. Later on he moved to England to study under J.J. Thomson in Cambridge and under Ernest Rutherford in Manchester. In 1913 he published his model of the atom, which was based on Rutherford’s planetary model. After his publication of his model he received worldwide fame.…

    • 1286 Words
    • 6 Pages
    Decent Essays
  • Decent Essays

    Atomic Theory History

    • 1040 Words
    • 4 Pages

    Thomson’s plum pudding model was correct, then the particles would shoot straight through the gold foil and only leave black marks on the direct other side of the foil. When Rutherford performed this experiment, he found that there were black marks on the sides of the foil that suggested that it reflected off of the gold foil along with appearing on the other side. With this experiment disproving J.J.’s model, Ernest proposed his own idea. His idea was that all of the positive charge and all of the mass of the atom occupies a rather small volume at the direct center of the atom. Also the most volume of the atom was from the empty spaces that electrons were found in.…

    • 1040 Words
    • 4 Pages
    Decent Essays