The History of the Atomic Model

By lgrzina
  • 400

    Democritus discovered that everything was composed of atoms

    Democritus discovered that everything was composed of atoms

  • John Dalton discovered that atomsof different elements are different sizes

    John Dalton discovered that atomsof different elements are different sizes

  • J.J. Thomson discovered the electron

    J.J. Thomson discovered the electron

  • Ernest Rutherford discovered there is a positively charged center called the nucleus

    Ernest Rutherford discovered there is a positively charged center called the nucleus

  • Niels Bohr discover that there is a positively chraged nucleus surrounded by orbiting electrons

    Niels Bohr discover that there is a positively chraged nucleus surrounded by orbiting electrons

  • James Chadwick discovered the neutron

    James Chadwick discovered the neutron