Answer the following question given this paragraph: 

Atomic radii have been measured for elements. The units for atomic radii are picometers, equal to 10 -12 meters. As an example, the internuclear distance between the two hydrogen atoms in an H 2 molecule is measured to be 74 pm. Therefore, the atomic radius of a hydrogen atom is .


Q: What unit are atomic radii typically measured in?

 Choices:

- sporozoans

- radons

- powers

- picometers

A:
picometers
