What are the successes and failures of the Bohr atomic model?

Here are the successes and failures of the Bohr atomic model:

• Successes of the Bohr atomic model:

  • It successfully explained the stability of atoms and the line spectrum of hydrogen and other one-electron species (like He$^+$ and Li$^{2+}$).
  • It accurately calculated the energy of electrons in different orbits and the radii of these orbits for hydrogen.
  • It introduced the concept of quantized energy levels, meaning electrons can only exist in specific energy states.

• Failures of the Bohr atomic model:

  • It failed to explain the spectra of multi-electron atoms.
  • It could not explain the splitting of spectral lines in the presence of a magnetic field (Zeeman effect) or an electric field (Stark effect).
  • It did not account for the wave nature of electrons (de Broglie hypothesis) or the Heisenberg uncertainty principle.
  • It assumed electrons orbit the nucleus in fixed, circular paths, which is not entirely accurate according to quantum mechanics.