J.J ThomsonBy: Jazzy, Anthony and Katya

J.J Thomson Also known as, Joseph

John Thomson

A Famous British physicist

Born 18th of December 1856 in Cheetham Hill Manchester in England

Died 30th of August 1940, buried at Westminster Abbey

Life He went to University of

Manchester in 1870, then later on moved on to Trinity College, Cambridge in 1876

He became the Cavendish Professor of Physics in 1884

Got married to Rose Elisabeth Paget in 1890

They had one daughter, Joan Paget Thomson, and one son, George Paget Thomson

George won the Nobel prize in 1937

Accomplishments A Nobel laureate for the discovery of

the electron and isotopes and for his invention, the mass spectrometer.

Awarded the 1906 Nobel prize in physics for his discoveries done on conduction of electricity in gases

Thomson enjoyed experimenting with cathode rays and cathode ray tubes

It led him to the discovery of electrons and subatomic particles

He used the cathode ray tubes in 3 different experiments

First Experiment Attempted to figure out if the

negative charge could or couldn’t be separated from cathode rays by means of magnetism

The negative charge couldn't be separated from the cathode rays

Thomson’s second experiment Tried to figure out if the rays

could or couldn’t be deflected by an electric field

Tried this multiple times but all failed

Failure because they contained trace amounts of gas

Thomson’s third experiment He measured the

mass-to-charge ratio of the cathode rays

Either particles were very light or very highly charged

Resources http://en.wikipedia.org/wiki/J._J._Thomson

http://nobelprize.org/nobel_prizes/physics/laureates/1906/thomson-bio.html

http://www.aip.org/history/electron/jj1897.htm