Final answer:
The approximate diameter of the nucleus is about 10 femtometers (fm) or 10^-14 meters. The nucleus is much smaller in diameter than the typical atom.
Step-by-step explanation:
The approximate diameter of the nucleus is about 10 femtometers (fm), or 10-14 meters. This can be calculated by using the radius of the nucleus, which is approximately 4.6 fm. The diameter is twice the radius, so it is about 10 fm.
The nucleus is much smaller in diameter than the typical atom, which has a diameter of the order of 10-10 meters. This means that the nucleus is about a thousand times smaller than an atom.