What is approximately the ratio of the nuclear radii of the gold isotope $^{197}_{79} ext{Au}$ and

Question

What is approximately the ratio of the nuclear radii of the gold isotope $^{197}_{79}	ext{Au}$ and the silver isotope $^{107}_{47}	ext{Ag}$?

Professor PC Thomas Classes · Answer

The ratio of radii is $(A_1 / A_2)^{1/3} = (197 / 107)^{1/3} \approx (1.84)^{1/3} \approx 1.22$.