Question

The ratio of the atomic radius to the nuclear radius is

Answer 1

Nuclear radius ~ 10-15 m or 1 fm (femtometer or fermi) Atomic radius ~ 10-10 m or 10-8 cm or 1 Å (1 angstrom).

Reference https://www.physicsforums.com/threads/ratio-of-nuclear-to-atomic-radius.93045/

Answer 2

depending upon radius