Atom Timeline

Atom Timeline

Democritus

460 BC - Approx. 370 BC

John Dalton

1776 - 1844

J.J. Thomson

1856 - 1940

Marie Curie

1867 - 1934

Robert Millikan

1868 - 1953

Ernest Rutherford

1871 - 1937

Niel Bohr

1885 - 1962

James Chadwick

1891 - 1974