What is true of an atom's nucleus?

A. It is positively charged and takes up most of the atom's space.
B. It is positively charged and includes most of the atom's mass.
C. It is negatively charged and includes most of the atom's mass.
D. It is negatively charged and takes up most of the atom's space.



Answer :

Final answer:

The atom's nucleus is positively charged and contains most of the atom's mass due to protons and neutrons. Electrons orbit around it in mostly empty space.


Explanation:

The nucleus of an atom is positively charged and includes most of the atom's mass. It consists of protons and neutrons tightly packed together, while electrons orbit around it in mostly empty space. The nucleus is incredibly small compared to the overall size of an atom, containing the majority of the atom's mass.


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