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According to J.J. Thomson, an atom could...

According to `J.J.` Thomson, an atom could be through of as

A

a uniform, negative sphere of matter in which protons are embedded

B

a unifrom sphere of matter in which both electrons and protons are uniformly distributed

C

a unifrom, positive sphere of matter in which electrons are embedded

D

the planet Saturn with a large, positively charged centre sphere surrounded by ''hard'' of electrons.

Text Solution

Verified by Experts

The correct Answer is:
C

Thomson compared the atom to raisin pudding with the electrons scattered through a positively charged mass like rainsins embedded in a pudding.
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Knowledge Check

  • According to Thomson.

    A
    negative charge of an atom is uniformly distributed throughout the atom.
    B
    the volume occupied by positive charge is less than that occupied by the negative charge.
    C
    electrons are embedded in the positive charge which is spread uniformly.
    D
    none of the above
  • According to Thomson

    A
    Negative charge of an atom is uniformly distributed throughout the atom.
    B
    the volume occupied by positive charge is less than that occupied by the negative charge.
    C
    electrons are embebbed in the positive charge which is spread uniformly.
    D
    None of the above
  • Assertion. According to Thomson model of atom, mass of the atom is concentrated in the centre of the atom. Reason. According to Thomson model, positive charge is concentrated in the centre of the atom

    A
    If both assertion and reason are true, and reason is the true explanation of the assertion
    B
    If both assertion and reason are true, but reason is not the true explanation of the assertion
    C
    If assertion is true, but reason is false
    D
    If both assertion and reason are false
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    Introduction|Discovery Of Electrons (J.J.Thomson)|Properties Of Cathode Rays|Charge To Mass Ratio Of Electron|Charge On The Electron|Summary

    Assertion (A ): According to Rutherford, atomic model, the path of electron is parabolic. Reason (R ): Rutherford could not explain the stability of atom.

    JJ Thomson experiment revealed that