Question

The diameter of an atom is approximately `1*10^-8`cm . What Is this diameter when expressed in nanometers?

Answer 1

0.1 nanometers.

Explanation:

A nanometer is `10^-9` meters.

If you convert `1` cm into `10^-2` meters, then `10^-8 (10^-2)` meters would become `10^-10` meters, and `10^-10` meters converted to nanometers (times `10^9`) would be `0.1` nanometers.