3. (20 points) Bohr versus Heisenberg: The Bohr model of the atom is based on a

Question

3. (20 points) Bohr versus Heisenberg:

The Bohr model of the atom is based on a picture where electrons are going around the nucleus in precise, well-defined circular orbits that possess exact, quantized angular momentum. As we have seen, Heisenberg’s Uncertainty Principle is incompatible with the idea that all things can be known exactly about a system on the atomic scale. Describe two reasons why the simple picture that Bohr proposed conflicts with the uncertainty principle. Your answers will be scored according to correctness and detail.

Explanation / Answer

What the Bohr said is that electrons will revolve only in those orbits where the angular momentum will remain conserved or quantized which actually come in line with what debroglie said that any moving object will also produce its own waves have some wavelengths which today we known as debroglie wavelength. This debroglie principle suggest that these fast moving electrons should also possess some kind of wave character which is established by Davison germer experiment.

So electrons revolving in orbit will generate are standing waves in which there is no loss of energy which is exactly what bohr has said.

Since electron is showing both wave as well as particle nature it is really difficult to show the position of particle in a waves and Heisenberg's uncertainty principle come into picture.

So yes there is conflict but if consider deboglie there we will come to know that both are actually establishing each other.

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