Obtain approximately the ratio of the nuclear radii of the gold isotope and the silver isotope.
Nuclear radius of the gold isotope = RAu
Nuclear radius of the silver isotope = RAg
Mass number of gold, AAu = 197
Mass number of silver, AAg = 107
The ratio of the radii of the two nuclei is related with their mass numbers as:
Hence, the ratio of the nuclear radii of the gold and silver isotopes is about 1.23.