What charge do protons carry?

Protons carry a positive charge, which is fundamental to the structure of atoms. In the context of atomic structure, protons reside in the nucleus alongside neutrons, which are neutral and do not carry any charge. Electrons, which are negatively charged, orbit this positively charged nucleus. The positive charge of protons is crucial for the electromagnetic forces that attract electrons, allowing for the formation of stable atoms. This attraction between the positive charge of protons and the negative charge of electrons is what holds atoms together, making the positive charge of protons essential for the existence of matter as we know it. The other options do not accurately describe the nature of protons; they either refer to different charged particles or imply a lack of charge, which would misrepresent protons' characteristics.