MCQ
The main defect of Bohr's atom model is :
  • A
    mixing of classical and quantum theories
  • B
    exclusion of nuclear motion
  • C
    failed to explain the fine structure of spectral lines
  • failed to explain larger atoms

Answer

Correct option: D.
failed to explain larger atoms
Bohr's model can only clearly explain hydrogen or hydrogen-like atoms, it fails when applied to larger and heavier atoms like iron, gold, mercury, etc.

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