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Protons are subatomic particles found within the nucleus of atoms, carrying a positive electrical charge. Together with neutrons, they make up the nucleus of an atom, while electrons orbit around them in shells. The number of protons in an atom determines its element and chemical properties. One of the most intriguing aspects of protons is their stability. Despite being positively charged, protons do not repel each other within the nucleus due to the strong nuclear force that binds them together. This force is one of the four fundamental forces in the universe, alongside gravity, electromagnetism, and the weak nuclear force. In particle physics, protons are often involved in experiments to study the nature of matter and energy. They collide with other particles at high speeds, allowing physicists to investigate the fundamental forces and interactions that govern the universe. In conclusion, protons are essential for the existence of matter as we know it, and their properties continue to intrigue and inspire scientists in their quest to unravel the mysteries of the universe.