Question bank: Modern Physics: Bohr Model

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Question 1:

Easy

The atomic model proposed by Niels Bohr was based on the quantum theory developed by Max Planck, which describes that electrons move in circular orbits at a specific distance from the atom's nucleus, with a defined energy level. When an electron jumps to a lower energy level, does it absorb or emit light?

Modern Physics: Bohr Model

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Question 2:

Medium

What was the main limitation of the Bohr model?

Modern Physics: Bohr Model

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Question 3:

Easy

Bohr's Atom was an important contribution to modern Physics, as it explained the properties of chemical elements and suggested that electrons have a wave-like behavior based on quantum mechanics. Based on this model, what is the relationship between the energy levels of atoms?

Modern Physics: Bohr Model

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Question 4:

Easy

Modern Physics: Bohr Model

Question 5:

Hard

The hydrogen atom, whose model was described by Niels Bohr, is composed of a nucleus with a proton and an electron orbiting around it. Bohr's model proposes that the electron in a hydrogenic atom (an ion with only one electron) can move only in specific and quantized orbits. Given a hydrogenic atom with atomic number Z, follow the steps below to analyze the atom according to Bohr's model. (a) Write the expression for the electron's energy as a function of the principal quantum number (n) and the atomic number Z. (b) Based on Bohr's equation for quantization of angular momentum, relate the electron's orbit radius to the principal quantum number n and the atomic number Z. (c) Explain the electronic transition between different energy levels and how the emission spectrum of a hydrogenic atom relates to Bohr's quantization rules.

Modern Physics: Bohr Model

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