The ratio of the nuclear radii of the gold isotope ${ }_{79}^{197} \mathrm{Au}$ and silver isotope $

Question

The ratio of the nuclear radii of the gold isotope ${ }_{79}^{197} \mathrm{Au}$ and silver isotope ${ }_{47}^{107} \mathrm{Ag}$ is

Professor PC Thomas Classes · Answer

(a): Here, $A_1=197$ and $A_2=107$ \ $ 	herefore \quad \frac{R_1}{R_2}=\left(\frac{A_1}{A_2}ight)^{1 / 3}=\left(\frac{197}{107}ight)^{1 / 3}=1.23 $