Answer
0.12 mi
Work Step by Step
1: Calculate radius of atom from radius of nucleus
r atom=10000r nucleus which = 10000 (2.0 cm)= 2.0 \times 10^{4} cm
2: Convert centimeters into inches, then inches to feet, then feet into miles.
(2.0\times 10^{4}cm)\times (1 in/2.54 cm) \times (1ft/12in) \times (1mi/5280ft)= 0.12 mi
