Structure of Atom (Class IX)

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Multiple Choice

J. J. Thomson was awarded the Nobel Prize for Physics for his work on the discovery of electrons. Which of the following was/were suggested by Thomson in his model of atom?

  1. An atom consists of a positively charged sphere and the electrons are embedded in it.
  2. An atom consists of a negatively charged sphere and the electrons are embedded in it.
  3. The negative and positive charges are equal in magnitude.
  4. Both (1) and (3)
  5. Both (2) and (3)
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