Question

Which best describes the nucleus of an atom?

A. It is the part of the atom with the greatest mass.
B. It is the negatively charged part of the atom. C. It is where all of the particles of the atom are located.
D. It is where the electrons and protons are located.​

Answer 1

D. It is where the electrons and protons are located.

The nucleus of an atom is a small, dense region located at the center of the atom. It contains most of the mass of the atom and is composed of protons and neutrons. Electrons, on the other hand, are found outside the nucleus in regions called electron shells or energy levels. Therefore, option D correctly describes the nucleus as the location of both the protons and neutrons in an atom.