Approx volume occupied by a neutron?

Question

Estimate the approx. volume occupied by a neutron in the nucleus of carbon 12. answersin fm^3.

i have no idea what to do on this one, it seems really simple, but i just cant get it for some reason.

thanks for the help.

Answer 1

Assuming the neutron is about 1*10^-15 m in diameter

r=0.5*10^-15 m

v=(4/3)*pi*r^3

v=(4/3)*3.14159*(0.5*10^-15)^3 = 5.236*10^-46 m^3