Which argument best explains the charge of an atomic nucleus?

an atomic nucleus is positively charged because it is composed of neutrons.
an atomic nucleus is positively charged because it is composed of protons.
an atomic nucleus is negatively charged because it is composed of electrons.
an atomic nucleus is negatively charged because it is composed of neutrons.

An atom refers to a smallest, indivisible unit that comprises the matter that forms all chemical elements. Therefore, atoms are typically considered as the fundamental building blocks of matter which determines the structure of a chemical element.

Generally, an atom comprises three (3) distinct particles and these are;

Protons refers to the positively charged subatomic particles of a chemical element and an atomic nucleus.

On the other hand, electrons are the negatively charged subatomic particles of a chemical element with a magnitude of -1.

From the above definition, we can deduce that an atomic nucleus which is composed of protons is positively charged.

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