History of Atomic Theory

  • John Dalton

    John Dalton
    John Danton was born in 1766, best known for his pioneering work in the success of modern atomic theory and his analysis of colour blindness, also referred to as Daltonism in his honour. John was an English Chemist, Meteorologist and Physicist. In the 1800s he was the first scientist to demonstrate the behaviour of atoms terms of their measurement and weight.
  • J.J Thomson

    J.J Thomson
    J.J Thomson born in 1856, was the discoverer of the electron in a range of experiments sketched to study the nature of electric discharge in a high-vacuum cathode-ray tube. Thomson discovered the diversion of rays from electrically charging plates and magnets as confirmation of bodies much smaller than atoms. From this he was able to make an approximate guess of charge itself.
  • Marie Curie

    Marie was the discoverer of the mysterious element radium. This changed the way that scientists thought about matter and energy. Her discovery helped to start a new era of medical knowledge and the treatment of diseases.
  • Ernest Rutherford

    Ernest Rutherford
    Born on a farm in New Zealand, Ernest was in charge for the discoveries of radioactivity and nuclear physics. He devised alpha and beta rays, and arose laws of radioactive decay and determined alpha particles as helium nuclei. He also advanced the nuclear structure of atoms.
  • Francis Aston

    Francis Aston
    Born on September in 1877, Francis received the Noble Prize in 1922 for Chemistry. He was awarded the trophy for his 1919 discovery of mass spectrograph of isotopes. This invention proved the existence of isotopes, which allowed the study of nuclear with great precision. It also help to lay the principal for atomic energy and weaponry.
  • Niels Bohr

    Niels Bohr
    Niels Bohr born in October 1885, became an accomplished physicist who put forward the theory of atomic structures and radiation emission. He was handed the Nobel Prize for Physics in 1922 for his ideas from having worked on the Manhattan Project in the United States where he demanded for responsible and peaceful applications towards atomic energy throughout the world.
  • Henry Moseley

    Henry Moseley
    Henry Moseley born in 1887, was a British Scientist who invented the use of X-Ray spectra to examine atomic structure. His inventions helped to structure the elements of periodic table in a more accurate way. This structure helped to determine atomic numbers.In 1913, while Henry was studying at the University of Manchester he established a practical relationship between wavelength and atomic number, now known as the Moseley’s Law.
  • Murray Gell-Mann

    Murray Gell-Mann
    Murray born in New York was an American physicist who in 1969 won a Nobel Prize for his work in classifying subatomic particles and their interactions. Subatomic particles are a range of self-contained units of both matter or energy that are primary factors of all matter.
  • James Chadwick

    James Chadwick
    James was an English physicist who was born in July 1974. James was awarded the Nobel Prize in Physics in 1935 as in 1932 discovered the neutron. He was the head of all British scientists who were working on the Manhattan Project at the time and he was knighted in the British honours system for his achievements in physics in 1945.
  • Erwin Schrodinger

    Erwin Schrodinger
    Erwin was an Austrian physicist who was born in 1961. He developed a range of fundamental results in quantum theory. This field was the basic form on wave mechanics. Erwin also looked at the problems of genetics that included the phenomenon of life from the point of view of physics. He paid full attention to the ancient and oriental philosophical concepts, philosophical aspects of science as well as ethics and religion.