The radius of the atom is of the order of

• A. \[\text{1}{{0}^{-\text{1}0}}\text{ cm}\]
• B. \[\text{1}{{0}^{-\text{13}}}\text{ cm}\]
• C. \[\text{1}{{0}^{-\text{15}}}\text{ cm}\]
• D. \[\text{1}{{0}^{-\text{8}}}\text{ cm}\]