An anatom with 5 protons, 10 neutrons, and 10 electrons is unstable and has a charge of +5. This is because the number of protons (positive charge) in the nucleus is greater than the number of electrons (negative charge) in the outer shell,resulting in a net positive charge. The excess positive charge makes the atom unstable and more likely to react with other atomsbor lose electrons to become a positively charged ion.