Evolution of the Atomic Model

  • Dalton Model

    John Adams pictured atoms as tiny particles that were indestructible with no structure.
  • Thomson Model

    Thomson pictured electrons embedded in a sphere of positive electrical charge.
  • Rutherford Model

    Rutherford found atoms have small, dense, positively charged nuclei.
  • Bohr Model

    Niles Bohr improved upon Rutherford's model.