James Chadwick CH FRS (20 October 1891 – 24 July 1974) je onimosayensi ara Ilegeesi to gba Ebun Nobel ninu Fisiksi fun awaari to se fun neutroni. Àdàkọ:Cite doi Brown, Andrew (1997). The neutron and the bomb: a biography of Sir James Chadwick. Oxford [Oxfordshire]: Oxford University Press. ISBN 0-19-853992-4.