Scientist that contributed to the study of atoms

Timeline created by 115538021695
  • 384

    Aristotle Born 384 BC

    He believed that matter consisted of four elements. The elements of the earth: Earth, air, water, and fire.
  • 460

    Democritus A Western Philosopher

    The theory of Democritus and Leucippus says that everything is made from “atoms”. Also that “atoms” are indestructible and will always be in motion.
  • John Dalto Father of Modern Atomic Theory

    Had his own theory "Daltons theory ." Had 5 main points about how atoms were arranged.
  • William Crooke

    Studied the characteristics and atomic compound of cathode rays.
  • JJ Thomson

    He discovered the electron which he called the corpuscles.
  • Dmitri Mendeleev

    Dmitri Mendeleev is the scientist that that contributed most to the periodic table and its arrangements.
  • Ernest Rutherford Father of nuclear physics

    Rutherford studied the radioactivity of an atom. He discovered that there are two types of atoms.
  • Niels Bohr

    Niels Bohr proposed that electrons traveled in discrete orbit around the nucleus according to the element.
  • James Chadwick

    He proved the existence of neutrons.
  • John Newlands

    John Newlands studied the periodic table of elements. Came up with the law of octaves.
  • Period:

    Life span of scientist