A microscopic particle has a diameter of 0.08 μm0.08\ \mu\mathrm{m}0.08 μm. Its diameter is approximately 400 times the diameter of one atom.
What is the estimated diameter of one atom in metres?
2.0×10−10 m2.0\times10^{-10}\ \mathrm{m}2.0×10−10 m
2.0×10−8 m2.0\times10^{-8}\ \mathrm{m}2.0×10−8 m
2.0×10−7 m2.0\times10^{-7}\ \mathrm{m}2.0×10−7 m
2.0×10−13 m2.0\times10^{-13}\ \mathrm{m}2.0×10−13 m