J.J. Thomson

Events

Democritus stated that atoms were minuscule quantities of matter

400 B.C.

Dalton's theory claimed that all matter was composed of atoms, and all elements are different due to different masses.

1803

Birth

December 18, 1856

Revieved small scholarship to attend Trinity College at Cambridge to study Math

1876

Became fellow of Trinity College

1880

Became lecturer of Trinity College

1883

Became Cavendish professor of physics

January 1, 1884

Married Rose Paget

January 22, 1892

Began studying cathode rays

1894

Began studying positively charged ions

1906

Received the Nobel prize in recognition of great merits of his theoretical & experimental investigations on the conduction of electricity by gases.

January 1, 1906

Knighted by King Edward VII

1908

Rutherford did the gold foil experiment in which he demonstrated that the atom has a tiny, heavy nucleus.

1911

Discovered that neon was composed of 2 different kind of atoms.

1912

Bohr created a model to represent the atom

1913

Became master of Trinity College and left researching

1918

Schrodinger used mathematical equations to describe the likelihood of finding an electron in a certain position.

1926

James Chadwick announced that the core contained a uncharged particle which he called the neutron.

May 1932

Death

August 30, 1940