Question

Atomic size is of the order of____________.

• A. ${10}^{-7}cm$
• B. ${10}^{-10}cm$
• C. ${10}^{-13}cm$
• D. ${10}^{-6}cm$

Answer 1

The correct option is A ${10}^{-7}cm$

The atomic size or atomic radius is of the order of ${10}^{-7}cm$ or ${10}^{-9}m$ or 1 nanometer(nm).