Discovery of Electron by Sir J. J. Thomson

Author:R R Misra
9th CBSE
IMPORTANT

Discovery of Electron by Sir J. J. Thomson: Overview

This topic explains the circumstances under which Sir J J Thomson discovered the existence of an electron with the help of a diagram. We look at the various characteristics of an electron, including its charge, notation, and mass.

Important Questions on Discovery of Electron by Sir J. J. Thomson

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Secondary Chemistry>Structure of Atom>Discovery of Electron by Sir J. J. Thomson> Q 1

What is the nature of charge on an electron? (positive or negative)

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Secondary Chemistry>Structure of Atom>Discovery of Electron by Sir J. J. Thomson> Q 2

The positively charged central part of the atom is called _____.
 

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Secondary Chemistry>Structure of Atom>Discovery of Electron by Sir J. J. Thomson> Q 3

Plum-pudding model of atom was proposed by:
 

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Secondary Chemistry>Structure of Atom>Discovery of Electron by Sir J. J. Thomson> Q 4

Electron was discovered as cathode rays by
 

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Secondary Chemistry>Structure of Atom>Discovery of Electron by Sir J. J. Thomson> Q 5

Write the correct forms of the following statement.
Electron was discovered by JJ Thomson in the form of anode rays.

 

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Secondary Chemistry>Structure of Atom>Discovery of Electron by Sir J. J. Thomson> Q 6

Name the negatively charged fundamental particle of an atom.