Scientist that contributed to the study of atoms

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    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.

  • Aristotle Born 384 BC

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

    Life span of scientist