Sir James Chadwick, CH, FRS (20 October 1891 24 July 1974) was an English physicist and Nobel laureate in physics awarded for his discovery of the neutron.
Sir James Chadwick, CH, FRS  lived 20 October 1891 to 24 July 1974. He was an English physicist and Nobel laureate in physics. He got it for his discovery of the neutron.