The thomson (symbol: Th) was proposed as a unit to measure mass-to-charge ratio in mass spectrometry in his honour
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Joseph John Thomson
Sir Joseph John Thomson was a British physicist. He received the 1906 Nobel Prize in Physics "in recognition of the great merits of his theoretical and experimental investigations on the conduction of electricity by gases." In 1897, he showed that cathode rays were composed of previously unknown negatively charged particles, which he calculated must have bodies much smaller than atoms and a very l…
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science · British physicist (1856–1940) · physicist · mathematician · university teacher · also Joseph John Thomson, J. J. Thomson, Sir Joseph Thomson, John Thompson, Sir Joseph John Thomson, Thomson
Born 18 December 1856 · Died 30 August 1940 · Q47285
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1991· 1 entry
1940· 3 entries
Died 1940-08-30.
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“¡Al electrón: quizás nunca sea utilidad para alguien!.”
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“Las dificultades que tendrían que ser superadas para hacer varios de los anteriores experimentos concluyentes son tan grandes como para ser casi insuperables.”
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1931· 1 entry
Won Dalton Medal (1931).
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1928· 1 entry
Awarded Guthrie Lecture (1928).
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1925· 1 entry
Won Faraday Medal (1925).
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1923· 2 entries
Awarded doctor honoris causa from the University of Paris (1923).
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Awarded John Scott Award (1923).
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1922· 1 entry
Won Franklin Medal (1922).
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1920· 1 entry
Rutherford and his fellows agreed to call the nucleus of the hydrogen ion "proton", establishing a distinct name for the smallest known positively-charged particle of matter (that can exist independently anyway)
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1918· 3 entries
Became Master of Trinity College, Cambridge, a position he held until his death on 30 August 1940
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Was known as the Thomson Report
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Career landmark: Master of Trinity College, Cambridge (1918–1940).
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1915· 2 entries
Won Albert Medal (1915).
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Career landmark: President of the Royal Society (1915–1920).
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1914· 1 entry
Won Copley Medal (1914).
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1913· 1 entry
Won Royal Society Bakerian Medal (1913).
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1912· 2 entries
As part of his exploration into the composition of canal rays (positive ions)
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As part of his exploration into the composition of the streams of positively charged particles then known as canal rays, Thomson and his research assistant, F
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1910· 1 entry
Won Elliott Cresson Medal (1910).
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1908· 1 entry
And appointed to the Order of Merit in 1912
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1906· 3 entries
Awarded the Nobel Prize in Physics — in recognition of the great merits of his theoretical and experimental investigations on the conduction of electricity by gases.
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Awarded Nobel Prize in Physics (1906).
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Thomson demonstrated that hydrogen had only a single electron per atom
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1905· 1 entry
Thomson discovered the natural radioactivity of potassium
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1904· 1 entry
Thomson suggested a model of the atom, hypothesizing that it was a sphere of positive matter within which electrostatic forces determined the positioning of the corpuscles
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1903· 1 entry
Awarded Silliman Memorial Lectures (1903).
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1902· 2 entries
Won Hodgkins Medal (1902).
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Won Hughes Medal (1902).
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1899· 1 entry
Measured the charge of the electron to be of 6
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1897· 2 entries
Was the first to suggest that one of the fundamental units of the atom was more than 1,000 times smaller than an atom, suggesting the subatomic particle now known as the electron
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Showed that cathode rays were composed of previously unknown negatively charged particles (now called electrons), which he calculated must have bodies much smaller than atoms and a very large charge-to-mass ratio
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1896· 1 entry
Were subsequently published as Discharge of electricity through gases (1897)
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1894· 1 entry
Won Royal Medal (1894).
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1891· 2 entries
As a tentative name for the basic unit of electrical charge (which had then yet to be discovered)
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Prior to Thomson's discovery
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1890· 1 entry
Thomson married Rose Elisabeth Paget at the church of St Mary the Less
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1884· 1 entry
Awarded Fellow of the Royal Society (1884).
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1882· 2 entries
Awarded Adams Prize (1882).
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Women could attend demonstrations and lectures at the University of Cambridge
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1876· 1 entry
Thomson moved on to Trinity College, Cambridge
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1870· 1 entry
Was admitted to Owens College in Manchester (now the University of Manchester) at the unusually young age of 14, and came under the influence of Balfour Stewart, Professor of Physics, who initiated him into physical r
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1856· 1 entry
Born 1856-12-18.
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