Question

The radius of an atomic nucleus is of the order of?

• A. ${10}^{-10}cm$
• B. ${10}^{-13}cm$
• C. ${10}^{-15}cm$
• D. ${10}^{-8}cm$

Answer 1

The correct option is B ${10}^{-13}cm$

Radius of a nucleus is in the order of ${10}^{-13}cm$. The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom, discovered in 1911 by Ernest Rutherford based on the 1909 Geiger–Marsden gold foil experiment.