positively charged nucleus

The positively charged nucleus is the central core of an atom, composed mostly of protons. Protons have a positive electric charge, which gives the nucleus its overall positive charge. This positive charge influences how the atom interacts with others, especially attracting negatively charged particles like electrons. The nucleus is very dense and small compared to the entire atom but contains nearly all of the atom's mass. Its positive charge is essential for the stability and behavior of atoms, helping to hold electrons in orbit through electrostatic attraction.