An atom is composed of a nucleus surrounded by electron clouds of varying sizes. The nucleus contains protons and neutrons, while electrons move about the nucleus in the electron clouds. Which of the following statements is also true of atoms?
A.
Even though the nucleus of an atom is very large, most of the atom's mass is in the electron clouds.
B.
The nucleus of an atom is very small, so most of the atom's mass is in the electron clouds.
C.
Even though the nucleus of an atom is very small, it contains most of the atom's mass.
D.
The nucleus of an atom is very large, and it contains most of the atom's mass.