The atom timeline

By scholtesc

  • Dalton: Solid Sphere Model

    Daltons sphere model was the first atomic model. His hypothesis was a atom is 'a solid sphere that could not be divided into smaller particles'.

  • Thompson: The Plum Pudding Model

    Thomson discovered atoms are composite objects. The atom is made up of pieces with positive and negative charge.

  • Rutherford: The Nuclear Model

    Model of the atom made by Ernest Rutherford. Thomson's plum pudding model of the atom was incorrect.

  • Bohr: The Bohr (Planetary) Model

    Shows atom as small and positively charged nucleus surrounded by electrons.

  • Schrodinger: Quantum Mechanics Model

    model that explains electrons existence in atoms. Electrons determine the chemical and physical properties.

  • todays date