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Protons are subatomic particles that are commonly found in the nucleus of an atom. They have a positive charge and are crucial in determining the identity of an element. Protons, along with neutrons, make up the nucleus of an atom, while electrons orbit around the nucleus. The number of protons in an atom determines the element's atomic number, which in turn dictates its chemical properties. For example, hydrogen has one proton, helium has two, and so on. The total number of protons and neutrons in an atom make up its atomic mass. Protons play a key role in nuclear reactions and are involved in processes such as nuclear fission and fusion. Scientists continue to study protons to unlock the mysteries of the universe and understand the fundamental forces that govern the cosmos. In conclusion, protons are integral to the structure of matter and are fundamental to our understanding of the universe. Studying protons leads to new discoveries and advancements in various scientific fields.