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Atoms — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsAtoms1 Mark
MCQ
The simple Bohr modle is not applicable to He4 atom because:
  • A
    He4 is an inert gas.
  • B
    He4 has neutrons in the nucleus.
  • C
    He4 has one more electron.
  • D
    Electrons are not subject to central forces.
✓

Answer

  1. He4 has one more electron.
  2. Electrons are not subject to central forces.

Solution:

Bohr model applies only to a Hydrogen-like atom (or atom having one electron). 2He4 atom has two electrons. Also, these electrons are not subject to central forces.

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