James Chadwick

1891-1974

Chadwick was born in Bollington, England, UK on October 20, 1891.

Chadwick discovered the neutron in 1932. 

A neutron is a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.

Two years after the discovery of the neutron, James Chadwick won the Nobel Prize in Physics. 

James Chadwick's discovery of the neutron.

Chadwick was a prisoner in World War I. After the war, he returned to England and accepted a Wollaston Studentship at Gonville and Caius College, Cambridge. 

Chadwick worked with Rutherford who had succeeded that year in breaking apart atoms by bombarding nitrogen with other particles, with discharge from a proton which was the first artificial nuclear transformation.

This is how Chadwick proved the existence of neutrons.

Fun Fact: The show "The Adventures of Jimmy Neutron" was after James Chadwick because he was given the nickname "Jimmy Neutron" after his discovery.

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Public - 9/20/16, 12:46 PM