Sara Etherington - Timeline

By fhschemistry
  • 460

    Democritus

    Democritus was born in 460 B.C.

  • Dalton

    John Dalton was born September 6th 1766

  • Daltons Atomic Theory

    Around 1805 Dalton Published his Atomic Theory

  • Crooke

    William Crooke was born June 17th 1832

  • Newlands

    John Newlands was born November 26th 1837

  • J.J. Thomson

    J.J. Thomson was born December 18th 1856

  • Law of Octaves

    John Newlands publishes his law of octaves

  • Principles of Chemistry

    Mendeleeve published his two volume textbook called the Principles of Chemistry

  • Crookes Tube

    Around 1869 William Crooke produced the Crookes tube.

  • Rutherford

    Ernest Rutherford was born August 30th 1871

  • Bohr

    Niels Bohr was born October 7th 1885

  • Chadwick

    James Chadwick was born October 20th 1891

  • Mendeleeve

    Dmitri Mendeleeve was born Febuary 8th 1897

  • Discovery of the electron

    In 1897 JJ Thomson discovered the electron

  • Logic

    Aristotle created a system of logic that is still used today

  • Father of Nuclear Physics

    Ernest Rutherford said that atoms have their positive charge concentrated in a very small nucleus. This created the Rutherford Model. "He is widely credited with first splitting the atom in 1917, and leading the first experiment to 'split the nucleus'"

  • Atom Splitting

    Ernest Rutherford was credited with the experiment of splitting the nucleus. He also "postulated that atoms have their positive charge concentrated in a very small nucleus."

  • Nobel Prize

    Niels Bohr was awarded the Nobel Prize in Physicics "for his services in the investigation of the structure of atoms and of the radiation emanating from them."

  • The Neutron

    In 1932 James Chadwick discovered the Neutron

  • Aristotle

    Aristotle was born in 384 B.C.