Question: The single proton that forms the nucleus of the hydrogen atom has a radius of approximately 1.0 x 10^-13 cm. The hydrogen atom itself has a radius of approximately 52.9 pm. What fraction of the space within the atom is occupied by the nucleus?


radius of H atom = 52.9 pm

radius of H atom’s nucleus = cm

Find: Volume of nucleus/ Volume of atom

Relationships Used:

And, I also decided I should convert the cm to pm so I would be using the same measurement.




Divide the Nucleus volume by the Atom volume to find the amount of space the nucleus takes up within the atom: pm


I used a calculator for my calculations which is why I have E, though I’m wondering if in the future I switch it to the scientific notation instead?