Question

The diameter of a helium atom is 0.1 nanometers. What is the diameter in millimeters?

Answer 1

We need to convert from nanometers to millimeters.

In terms of meters, we know

• 1 millimeter (mm) = 0.001 meters (m)

and,

• 1 nanometer (nm) = 0.000000001 meters (m)

The conversion between nanometer and millimeters is,

`(0.000000001)/(0.001)=1*10^(-6)`

So,

1 nanometer (nm) = 1 x 10^(-6) mm

Let's change 0.1 nanometers to millimeters >>>

Answer
`\begin{gathered} 1*10^(-7)\text{ mm} \\ or, \\ 0.0000001\text{ mm} \end{gathered}`