Quantization as a 'Desperate Fix': The Bohr Model

Interpret atomic emission spectra as empirical clues demanding a non-classical explanation.

State Bohr's postulates and explain why the quantization of angular momentum was a radical departure from classical physics.

Calculate energy levels and spectral line wavelengths for a hydrogen-like atom using the Bohr model.

Identify the successes of the Bohr model (e.g., hydrogen spectrum) and its central failures (e.g., multi-electron atoms, spectral intensities).

Explain why Bohr's model, despite its partial success, is conceptually unsatisfying because it postulates rules without explaining their origin.