Chemistry teacher

Limitations of Bohr’s Model (NEET Level Notes) Key limitations of Bohr's atomic model explained for NEET and Class 11 students. Introduction Bohr’s model was an improvement over Rutherford’s model. It successfully explained: Stability of the hydrogen atom. Line spectrum of hydrogen and hydrogen-like ions such as He⁺, Li²⁺, Be³⁺, etc. However, Bohr’s model was too simple and could not explain many experimental observations. 1. Could Not Explain Fine Structure of Hydrogen Spectrum What Bohr Explained Bohr explained that electrons move in fixed energy levels. When electrons jump between energy levels, spectral lines are produced. Limitation Modern spectroscopes showed that some spectral lines are actually split into two or more very closely spaced lines. Doublet A doublet means two very closely spaced spectral lines. Bohr's model could not explain why a single spectral line splits into a doublet. NEET Point: Bohr's model fails to explain the fine s...