Bohr's Atomic Model
Learning Objective
I can describe the key features of the Bohr model of the atom.
Key Concepts
Bohr extended energy quantization to the atom, stating that an electron can only inhabit certain energy levels at fixed distances from the nucleus.
An electron transitions between energy levels by absorbing or emitting a photon with energy equal to the difference between the energy levels.
The Balmer series contains transitions that generate photons of visible light, and each element has a unique emission spectrum due to its unique nucleus and energy levels.
Practice Questions
This lesson includes 3 practice questions to reinforce learning.
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1. According to Bohr's model, why don't electrons collide with the nucleus of an atom?
2. Explain how the Bohr model accounts for the emission spectra of different elements.
3. In the context of the Bohr model, what does it mean for an electron to transition from n=4 to n=2, and what can be determined from this transition?
Educational Video
Bohr Model of the Hydrogen Atom
Professor Dave Explains