In an atom, the part that is positively charged is the nucleus, which is made up of protons and neutrons. Protons carry a positive charge, while neutrons are neutral and do not have a charge. Surrounding the nucleus are electrons, which are negatively charged particles. This arrangement creates a balance: the positive charge of the protons attracts the negatively charged electrons, keeping them in orbit around the nucleus.
This structure is fundamental to the nature of atoms and ultimately to the behavior of matter. The positive charge of protons and the negative charge of electrons are essential for the formation of chemical bonds and the overall interactions between different atoms.