electron orbits quantization

Question

Bohr postulate: angular momentum quantized as?

RankGuru · Accepted Answer

1. **Bohr's Postulate**: Electrons can revolve only in certain stable, non-radiating orbits (stationary states).
2. **Quantization Rule**: The angular momentum ($L$) of the electron in such orbits must be an integral multiple of $h/2\pi$.
3. **Equation**: $L = mvr = n \frac{h}{2\pi}$, where $n = 1, 2, 3, \dots$
4. **Terminology**: Here $n$ is the principal quantum number. The constant $h/2\pi$ is often written as $\hbar$ (h-bar).

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electron orbits quantization

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