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What is the fraction for the nucleus?

Updated: 9/25/2023
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โˆ™ 8y ago

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The answer will depend on what nucleus the question refers to. The nucleus of a cell is quite different from a nucleus of an atom. which differs from the nucleus of an organisation.

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โˆ™ 8y ago
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Q: What is the fraction for the nucleus?
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How does the volume of a nucleus compare to the volume of an atom?

The nucleus of an atom is much smaller than the volume of the entire atom. The nucleus makes up only a tiny fraction of the total volume, with the electrons surrounding the nucleus occupying the majority of the space.


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The experimental basis for believing that the nucleus occupies a very small fraction of the volume of the atom comes from the results of the Rutherford gold foil experiment. In this experiment, alpha particles were fired at a thin gold foil, and most particles passed straight through, indicating that the nucleus, where most of the atom's mass is concentrated, is very small compared to the overall size of the atom. This led to the development of the planetary model of the atom, where electrons orbit a small, dense nucleus.


Assuming the diameters of the nucleus and atom are 10'4 A and 1-5 A correspondingly what fraction of the volume of the atom is taken up by the nucleus?

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