You are not authorized to access this page.
Science

Atom History

By FnXjEti
  • Democritus
    450 BCE

    Democritus

    His atomic model was solid, and stated all atoms differ in size, shape, mass, position, and arrangement, with a void exists between them.
  • Dalton

    Dalton

    His atomic model stated that all matter was composed by atoms, indivisible and indestructible building blocks.
  • Thomson

    Thomson

    His atomic model stated that all atoms contain tiny negatively charged subatomic particles.
  • Rutherford

    Rutherford

    His atomic model postulated the nuclear structure of the atom.
  • Bohr

    Bohr

    His atomic model proposed a theory for hydrogen atom based on quantum theory that energy is transferred only in certain well defined quantities.
  • Schrödinger

    Schrödinger

    His atomic model is know as the quantum mechanical model of the atom.
  • Chadwick

    Chadwick

    His atomic model discover the neutron.