British physicist, discoverer of the electron in 1897, who built an early positive ray apparatus around 1912 to 13 that passed charged particles through electric and magnetic fields to sort them by mass, producing the first mass spectra and the first evidence that some elements exist as a mixture of isotopes. He won the 1906 Nobel Prize in Physics for his earlier work on the conduction of electricity through gases, not for the mass spectrograph itself.
Facts
FieldPhysics, atomic structure and mass spectrometry 1 Field
Field (category) Connections
Founded
Source Particle Physics (Wikipedia)
Invented
Built an early positive ray apparatus around 1912 to 13 that sorted charged particles by mass, producing the first mass spectra; his student Francis Aston later refined the device into the modern mass spectrograph.
Source Mass Spectrometry (Wikipedia)
Member Of
Source NobelPrize.org: J. J. Thomson - Facts
Works In
Source Joseph John J. J. Thomson (Science History Institute)
Source J.J. Thomson (Wikipedia)
In the Other Atlases
Nationality
Also in Geography Atlas: the nationality of this subject.
Sources
1. J.J. Thomson (Wikipedia)
WikipediaLead section
Sir Joseph John Thomson (18 December 1856-30 August 1940) was a British physicist.
- Works In: Physics
View the Source Mass Spectrometry (Wikipedia)
Joseph John J. J. Thomson (Science History Institute)
Particle Physics (Wikipedia)
NobelPrize.org: J. J. Thomson - Facts
NobelPrize.orgMember Of: University of Cambridge, Facts: affiliation at the time of the awardQuote, Member Of: University of Cambridge, Facts: affiliation at the time of the award
Affiliation at the time of the award: University of Cambridge, Cambridge, United Kingdom
Reader Challenges (0)
No disputes yet. Spotted an error or a better source? Open the first one.
Sign in to dispute this or suggest a correction.