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Structure of Atom — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistryStructure of Atom1 Mark
MCQ
Bohr modified the ___________ by adding that the electrons move in orbits of fixed size and energy.
  • A
    Rutherford's model.
  • B
    Dalton's model.
  • C
    Thomson's model.
  • D
    Goldstein's model.
✓

Answer

  1. Rutherford's model.

Explanation:

Bohr modified the Rutherford model by adding that the electrons move in orbits of fixed size and energy.  Electrons revolve around the nucleus in concentric circular orbits at fixed distance from the nucleus. These are stationary orbits and the energy of electrons in these orbits is constant.

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