Question

describing the nucleus of an atom
knowing what you know about the nucleus and the subatomic particles in the nucleus, what do you think is the charge of the nucleus of an atom?

Explanation:

The nucleus of an atom contains protons (positively - charged particles) and neutrons (neutral particles). Since neutrons have no charge and protons have a positive charge, the overall charge of the nucleus is determined by the protons.

Answer:

The nucleus of an atom has a positive charge.