in nuclear physics, what units are used to measure the radius of an atom? answer choices: liters, mililiters, fermi, or grams?

Question

in nuclear physics, what units are used to measure the radius of an atom?                  answer choices: liters, mililiters, fermi, or grams?

jamesj · Answer

Typically Angstrom. This is a non-SI unit and is defined as
1 Angstrom = 10^(-10) meters

Angstrom is abbreviated as A.

A hydrogen atom has a radius of around 0.5 A

anonymous · Answer

answer choices: liters, mililiters, fermi, or grams

anonymous · Answer

lol

jamesj · Answer

Ok. Which of these is a unit of length?

anonymous · Answer

idk lol

jamesj · Answer

What is a liter a measure of? Volume. What about milliliters?

jamesj · Answer

And what is the definition of a fermi? 
And what is grams a measure of?

anonymous · Answer

idk :( nvm.. forget it... thanks for helping me though

jamesj · Answer

Liter is a measure of volume and clearly a mililiter, being 1/000 of a liter is also a measure of volume.

Grams is a measure of mass.

So none of those three can be a measure of distance.

1 Fermi is defined to be a femtometer, i.e., 10^(-15) m. This must therefore be the answer.

Next time, don't give up so easily. You will never learn if you don't try and learn basic definitions.

anonymous · Answer

good answer :)