Birth of Joseph John Thomson
Birth of Joseph John Thomson
Follow Joseph John Thomson through 9 dated historical records for Great Britain.
A chronological timeline drawn from matching World History Database records.
Birth of Joseph John Thomson
Discovers the electron
Measures the charge-to-mass ratio of cathode-ray particles and shows they are far lighter than atoms.
Argues that cathode rays consist of universal negatively charged corpuscles, later called electrons.
Proposes an atomic model containing negatively charged electrons embedded within diffuse positive charge.
Receives the Nobel Prize in Physics for investigations of electrical conduction through gases.
Receives the Nobel Prize in Physics for theoretical and experimental investigations of electrical conduction through gases, work closely associated with the identification of the electron.
Finds evidence that neon atoms occur with different masses.
Uses positive rays to reveal the element's isotopic composition.
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.