MCQ
The main defect of Bohr's atom model is :
- AMixing of classical and quantum theories.
- BExclusion of nuclear motion.
- CFailed 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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