A limitation of the Bohr model is that it

  • A. cannot explain the hydrogen spectrum
  • B. works well only for hydrogen and other one electron systems
  • C. assumes energy is continuous
  • D. does not use quantisation

Explanation

The model reproduces the hydrogen spectrum beautifully but fails for atoms with more than one electron, and it cannot account for the relative intensities of lines or their splitting in a magnetic field. It also mixes classical orbits with quantum postulates in a way that is not self consistent. Quantum mechanics replaced the orbits with probability distributions and resolved these failures.

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