Why electrons stay in specific orbits without falling inward
In short: The Bohr model of the atom relies on a counterintuitive physical principle: electrons behave like waves. This video explains how self-interference dictates the specific paths electrons take around a nucleus.
The wave model provides a physical explanation for why electrons occupy specific orbits. Because electrons behave as waves, they can interfere with themselves as they travel around a nucleus. This creates "standing waves," where the electron's path remains stable.
Stability depends on the wavelength matching the orbit's circumference. If the wavelength does not align with a whole integer, destructive interference occurs, preventing the electron from existing in that state. Electrons transition between these stable orbits by absorbing or emitting photons of identical energy.
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Sources
- Summary by Intellect · source: Wave Model of an Electron
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