Which best describes the nucleus of an atom?

A. it is where the electrons and protons are located.

B. it is the negatively charged part of the atom

C. it is the part f the atom with the greatest mass

D. it is where all of the particles of the atom are located

Answer;

C. it is the part f the atom with the greatest mass

Explanation;

The nucleus of an atom is a small dense region at the center of an atom that contains protons and neutrons.

Almost all the mass of an atom is located in the nucleus, with a very small contribution from the electron shells.

The protons are positively charged which gives the nucleus a positive charge while the neutrons have no charge.