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JJ Thomason

Published on Nov 21, 2015

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PRESENTATION OUTLINE

1.

BRIEF BIOGRAPHY

  • When/where he was born: December 18, 1856, Manchester, England.S
  • When/where he died: August 30, 1940, Cambridge, England.
  • Educated: small private schools then Ownes College.
  • Worked: discovery of the electron, isotopes and mass spectrometry.
2.

EXPERIMENT OBSERVATIONS

  • The plum pudding model he observed the electrons that they were negative
  • He experimented with cathode rays.
3.

ATOMIC MODEL

  • Plum pudding model
4.

DESCRIPTION OF ATOMIC STRUCTURES

  • It was a model of what he thought an atom looked like with electrons, but the structure was wrong.
  • Thomson held that atoms are spheres of positively charged matter.

Jeremy Pleasant