A hydrogen atom has a diameter of about

10.1 nm.
Express this diameter in meters.

1 nm = 10^-9 m

so, 10.1 nm = 10.1*10^-9 m = 1.01*10^-8 m

Express this diameter in meter

To express the diameter of a hydrogen atom in meters, we need to convert nanometers to meters. The conversion factor is 1 nanometer (nm) is equal to 1 x 10^-9 meters (m).

Given that the diameter of a hydrogen atom is approximately 10.1 nm, we can use the conversion factor to calculate the diameter in meters:

10.1 nm * 1 x 10^-9 m/nm = 10.1 x 10^-9 m

Therefore, the diameter of a hydrogen atom can be expressed as 10.1 x 10^-9 meters.