The radius of a hydrogen atom in its ground state (known as the Bohr radius) is approximately 0.0529 nm0.0529\text{ nm}0.0529 nm.
What is the radius of this hydrogen atom in metres?
5.29×10−7 m5.29 \times 10^{-7}\text{ m}5.29×10−7 m
5.29×10−10 m5.29 \times 10^{-10}\text{ m}5.29×10−10 m
5.29×10−11 m5.29 \times 10^{-11}\text{ m}5.29×10−11 m
5.29×10−12 m5.29 \times 10^{-12}\text{ m}5.29×10−12 m