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(A) The radius of an atom is approximately $10^{-10} \ m$ and the radius of the nucleus is approximately $10^{-15} \ m$. The volume of a sphere is giv

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$10^{-15}$ times the volume of the atom.

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(A) The radius of an atom is approximately $10^{-10} \ m$ and the radius of the nucleus is approximately $10^{-15} \ m$. The volume of a sphere is given by $V = \frac{4}{3} \pi r^3$. Thus,the ratio of the volume of the nucleus to the volume of the atom is: $\frac{V_{	ext{nucleus}}}{V_{	ext{atom}}} = \frac{(10^{-15})^3}{(10^{-10})^3} = \frac{10^{-45}}{10^{-30}} = 10^{-15}$. Therefore,the volume of the nucleus is $10^{-15}$ times the volume of the atom.

The volume of the atomic nucleus is $......$ of the volume of the atom.

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