Atomic Research History

Events

Socrates

480 BC

Socrates was not a scientist, but his philosophical research contributed to current day physics.

Isaac Newton

1642

Developed the 3 laws of motion

John Dalton

1826

John Dalton proposed the modern atomic theory

Dmitri Mendeleev

1869

Created the Periodic Table, and the periodic law

J.J. Thomson

1904

Created the Plum Pudding Model

William Crookes

1904

Crookes discovered the element Thallium

Ernest Rutherford

1908

He postulated the nuclear structure of the atom

Karl Ferdinand

1909

Ferdinand invented the cathode ray tube for televisions

Niels Bohr

1913

Developed the theory that energy is only transferred in certain quantities.

Max Planck

1918

Planck discovered energy quanta.

Henry Moseley

1919

Developed Moseley's law which concerned x-rays that are emitted by atoms.

Albert Einstein

1921

Created Special and General Theory of Relativity, as well as the mass-energy equivalence

Louis de Broglie

1929

Predicted the wave like nature of of electrons.

Erwin Schrödinger

1933

He came up with the wave equation of electron movement.