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  • Obtain approximately the ratio of the nuclear radii of the gold isotope _79 ^197 Au and the silver isotope _47 ^107 Ag

Q.13.11 Obtain approximately the ratio of the nuclear radii of the gold isotope _{79}^{197}\textrm{Au} and the silver isotope _{47}^{107}\textrm{Ag}

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The nuclear radii are directly proportional to the cube root of the mass number.

The ratio of the radii of the given isotopes is therefore 

\left ( \frac{197}{107} \right )^{1/3}=1.23

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