Table of Contents
Who is JJ Thomson and what did he discover?
In 1897, J.J. Thomson discovered the electron by experimenting with a Crookes, or cathode ray, tube. He demonstrated that cathode rays were negatively charged. In addition, he also studied positively charged particles in neon gas.
What are 3 discoveries from Thomson’s experiment?
In the second experiment, he discovered that the charge in the cathode rays was negative. He deduced that the cathode rays were made up of negatively-charged particles. Finally, in the third experiment, he found that these particles were smaller than an atom.
What are 5 facts about JJ Thomson?
J. J. Thomson
- Beginnings: School and University.
- Early Research Work.
- Discovery of the Electron – The first subatomic particle.
- The Atom as a Plum Pudding.
- Invention of the Mass Spectrometer.
- Every Hydrogen Atom has only one Electron.
- Discovery of Isotopes of Stable Elements.
- Some Personal Details and the End.
What is JJ Thompson known for?
In 1897 Thomson discovered the electron and then went on to propose a model for the structure of the atom. His work also led to the invention of the mass spectrograph. The British physicist Joseph John (J. J.)
What is JJ Thomson most famous for?
Thomson, in full Sir Joseph John Thomson, (born December 18, 1856, Cheetham Hill, near Manchester, England—died August 30, 1940, Cambridge, Cambridgeshire), English physicist who helped revolutionize the knowledge of atomic structure by his discovery of the electron (1897).
What was JJ Thomson’s major discovery?
On April 30, 1897, British physicist J.J. Thomson announced his discovery that atoms were made up of smaller components. This finding revolutionized the way scientists thought about the atom and had major ramifications for the field of physics.
Who discovered CRT?
Karl Ferdinand Braun
TelefunkenAllen B. DuMontAlan Archibald Campbell-Swinton
Cathode-ray tube/Inventors
The first cathode ray tube scanning device was invented by the German scientist Karl Ferdinand Braun in 1897. Braun introduced a CRT with a fluorescent screen, known as the cathode ray oscilloscope. The screen would emit a visible light when struck by a beam of electrons.
Why is the work of JJ Thomson important?
In 1897 Thomson discovered the electron and then went on to propose a model for the structure of the atom. His work also led to the invention of the mass spectrograph.
Did J.J. Thomson have kids?
George Paget Thomson
Joan Paget Thomson
J. J. Thomson/Children
Thomson married Rose Paget, one of his students, in 1890. They had one daughter, Joan, and one son, George Paget Thomson, who went on to become a physicist and win a Nobel Prize of his own. J.J.
How long did J.J. Thomson live?
J. J. Thomson
| Sir J. J. Thomson OM PRS | |
|---|---|
| Born | Joseph John Thomson18 December 1856 Cheetham Hill, Manchester, England |
| Died | 30 August 1940 (aged 83) Cambridge, England |
| Citizenship | British |
| Nationality | English |
Where did JJ Thomson live?
Cheetham Hill
United Kingdom
J. J. Thomson/Places lived
Joseph John Thomson was born in Cheetham Hill, a suburb of Manchester on December 18, 1856. He enrolled at Owens College, Manchester, in 1870, and in 1876 entered Trinity College, Cambridge as a minor scholar.
https://www.youtube.com/watch?v=yVkQyu1iHEI