Cat

Chemistry Timeline

  • Electrolysis

    Electrolysis was discovered in 1800 by William Nicholson and Johann Ritter by decomposing water into oxygen and hydrogen.
  • John Dalton

    John Dalton
    John Dalton stood in front of the Manchester Literary and Philosophical Societyand showed everyone atoms with their relative weights, a first in history.
    picture
  • First Periodic Table created

    First Periodic Table created
    creater of periodic table
    Dmitry Mendeleev created the first timeline. Other people before him have organized the elements according to
    properties, but Mendeleev was the first to display all elements on a table.
    Image at, Here
  • J. J. Thomson

    J. J. Thomson
    J. J. Thomson recieved the Nobel Prize for the discovery of the electron. He also recieve recognition for his work of the conduction of electricity found in gases.
  • Ernest Rutherford

    Ernest Rutherford
    Ernest Rutherford became well known for his concept of the nucleus. He studied the inner structure of the atom, which the scattering in the atom led to his concept of the nucleus.
  • Isotope comes to existence

    In 1912, the existence of isotopes, atoms with a particular chemical element, but with a different number of neutrons, come to be found by Frederick Soddy.
  • Bohr Model

    Bohr Model
    The Bohr model was made by Niels Bohr. This model depicts the atom as a small, positively charged nucleus, surrounded by electrons that travel in circular orbits around it. This model is similar to the solar system, with the orbits of the planets around the Sun,
  • Nuclear Fission

    Nuclear Fission
    Nuclear Fission , the splitting of an atom, first was discovered in 1938. Almost 50 years of work studying explosions and nuclear physics came to the discovery of the spliting.
  • Nuclear Fusion

    The first nuclear fusion experiments were performed in 2009. These reactions were large-scale, being very difficult to pull off.