Sir Joseph John Thomson OM PRS[1] (18 December 1856 – 30 August 1940) wis an Inglis pheesicist. He wis electit as a fellae o the Ryal Society o Lunnon[2] an appyntit tae the Cavendish Professorship o Experimental Pheesics at the Cambridge Varsity's Cavendish Laboratory in 1884.[3]

Sir Joseph John Thomson

Born18 December 1856
Cheetham Hill, Manchester, Ingland
Dee'd30 August 1940(1940-08-30) (aged 83)
Cambridge, Ingland
Alma materOwens College
Trinity College, Cambridge
Kent forPlum pudding model
Discovery o electron
Discovery o isotopes
Mass spectrometer invention
First m/e meisurment
Proposed first waveguide
Thomson scatterin
Thomson problem
Coinin term 'delta ray'
Coinin term 'epsilon radiation'
Thomson (unit)
AwairdsSmith's Prize (1880)
Royal Medal (1894)
Hughes Medal (1902)
Nobel Prize in Physics (1906)
Elliott Cresson Medal (1910)
Copley Medal (1914)
Albert Medal (1915)
Franklin Medal (1922)
Faraday Medal (1925)
Scientific career
InstitutionsTrinity College, Cambridge
Academic advisorsJohn Strutt (Rayleigh)
Edward John Routh
Notable studentsCharles Glover Barkla
Charles T. R. Wilson
Ernest Rutherford
Francis William Aston
John Townsend
J. Robert Oppenheimer
Owen Richardson
William Henry Bragg
H. Stanley Allen
John Zeleny
Daniel Frost Comstock
Max Born
T. H. Laby
Paul Langevin
Balthasar van der Pol
Geoffrey Ingram Taylor
Niels Bohr
George Paget Thomson
Thomson is the faither o Nobel laureate George Paget Thomson.


  1. Rayleigh (1941). "Joseph John Thomson. 1856-1940". Obituary Notices of Fellows of the Royal Society. 3 (10): 586–609. doi:10.1098/rsbm.1941.0024.
  2. Thomson, Sir George Paget. Sir J.J. Thomson, British Physicist. Encyclopædia Brittanica. Retrieved 11 Februar 2015.
  3. "Joseph John Thomson". Chemical Heritage Foundation. Retrieved 18 November 2013.