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Protons are subatomic particles that carry a positive electric charge and are found in the nucleus of every atom. They play a crucial role in determining the chemical properties of an element. With a mass of approximately 1.6726 x 10^-27 kg, protons are one of the building blocks of matter. Protons are created in the process of nuclear fusion, where hydrogen atoms combine to form helium in the cores of stars. They are also utilized in various medical treatments, such as proton therapy, which targets cancer cells with precision while minimizing damage to surrounding healthy tissue. In the field of physics, protons have provided insights into the structure of atomic nuclei and the forces that bind them together. They are essential for our understanding of the fundamental particles that make up the universe. The study of protons continues to uncover new discoveries and push the boundaries of scientific knowledge.