Input (grade 12): Sir James Chadwick CH FRS (20 October 1891 & ndash; 24 July 1974) was an English Nobel laureate in physics awarded for his discovery of the neutron.
Output (grade 12): Sir James Chadwick, (born 20 October 1891; died 24 July 1974) was an English physicist and Nobel Prize winner who is best known for discovering the neutron.