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Which of the following is an assumption made by Bohr about the hydrogen atom?
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9. Quantum Mechanics
Bohr Model
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In Bohr's model of the atom, which statement best describes the behavior of electrons?
A
Electrons are randomly distributed throughout the atom.
B
Electrons occupy elliptical orbits with continuously variable energies.
C
Electrons move in fixed circular orbits around the nucleus with quantized energies.
D
Electrons are stationary and do not move around the nucleus.
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Recall that Bohr's model of the atom was an early quantum model developed to explain the hydrogen atom's spectral lines.
Understand that in Bohr's model, electrons are not randomly distributed or stationary; instead, they move in specific paths.
Recognize that Bohr proposed electrons move in fixed circular orbits around the nucleus, each orbit corresponding to a specific energy level.
Note that these energy levels are quantized, meaning electrons can only exist in certain allowed orbits with discrete energies, not in between.
Therefore, the best description is that electrons move in fixed circular orbits around the nucleus with quantized energies.
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