Atomic Scientists

Democritus

Proposed atomos, tiny indivisible particles

John Dalton

Father of Modern Atomic Theory, proposed the Solid Ball Model

J.J. Thomson

Discovered the electron

Ernest Rutherford

Discovered the nucleus

Eugen Goldstein

Studied canal rays, sometimes credited with discovering the proton

James Chadwick

Discovered the neutron

Niels Bohr

Proposed that electrons occupy specific energy levels

Robert Millikan

Calculated the charge of an electron

Werner Heisenberg

Developed the Uncertainty Principle

Erwin Schrodinger

Developed the Quantum Mechanical Model

Dmitri Mendeleev

Developed the first periodic table