Question

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

• A. $1.23$
• B. $0.216$
• C. $2.13$
• D. $3.46$

Answer 1

Answer: (A)

$1.23$

Answer 2

: Here $A_{1} = 197$and$A_{2} = 107$

$\therefore\frac{R_{1}}{R_{2}} = \left( \frac{A_{1}}{A_{2}} \right)^{1/3} = \left( \frac{197}{107} \right)^{1/3} = 1.225$