Atomic Theory

Timeline created by adambom
  • 335


    He was a greek philosipher that didnt beleive in atoms. He beleived in the four elements earth air water and fire.
  • 460


    Democritus was a greek philospher who was a pupil of Leucippus. He believed that the everything was made up of atoms. He researched the atom. He also said that atoms were indestructable and that between atoms, lied empty space.
  • John Dalton

    John Dalton
    John was a meteorologist who studied weather and atoms. He said that elements were made up of tiny particles called atoms. he also said that all the atoms in an element had the same mass but different masses in different elements.
  • JJ Thompson

    JJ Thompson
    He was a british physicist who is said to have discovered the electron. He also discoverd isotopes. He studied atoms.
  • Hantaro Nagaoka

    Hantaro Nagaoka
    He was a japanese physicist. He developed early representation of atom(it was incorrect though). His representation showed a huge nucleus and electrons revolving around the nucleus.
  • Earnest Rutherford

    Earnest Rutherford
    He said that the atoms have their positive charge in the tiny nucleus. He was a chemist/physicist that researched the atom
  • Neils Bohr

    Neils Bohr
    Bohr discovered that electrons travel around the nucleus in descrete orbits.He was a physicist who studied physics and atoms.
  • Erwin Schrodinger

    he was a physicist