Correct Answer - Option 3 : 10
-5
Explanation:
Nuclear radius = 10-15 m
Atomic radius = 10 −10 m
\(Ratio = \frac{{Nuclear\;radius}}{{Atomic\;radius}} = \frac{{{{10}^{ - 15}}}}{{{{10}^{ - 10}}}} = {10^{ - 5}}\)
So, The ratio of radius of nucleus of the radius of atom is of the order of 10-5.