Final answer:
The volume of an atom is about a billion times greater than the volume of its nucleus, with the nucleus being akin to a pea in a stadium-sized atom.
Step-by-step explanation:
Compared to the volume of its nucleus, the volume of an atom is about D) A billion times greater. The nucleus of an atom is incredibly small in relation to the entire atom. Its radius is about 1/100,000 of the total radius of the atom, and while it contains virtually all the mass due to the protons and neutrons, the electrons occupy the vast majority of the atom's volume. Reflecting on scales involved, if an atom were the size of a football stadium, the nucleus would be similar in size to a pea or a blueberry. The diameter of an average atom is approximately 10-10 m, while the diameter of the nucleus is about 10-15 m, making the volume of the nucleus roughly a billion times smaller than the volume of the atom.