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Protons are positively charged subatomic particles that are found in the nucleus of an atom. They play a crucial role in determining the identity and properties of an element. The number of protons in an atom is what defines its atomic number, which in turn identifies the element on the periodic table. Protons are made up of smaller particles called quarks, specifically two 'up' quarks and one 'down' quark. The strong nuclear force holds these quarks together, creating the stable structure of a proton. One of the most intriguing aspects of protons is their ability to repel each other due to their positive charge. This phenomenon is known as the electromagnetic force. Despite this repulsion, protons are able to stay together within the nucleus of an atom, along with neutrons. In various fields such as physics, chemistry, and medicine, the study and manipulation of protons have led to incredible advancements and discoveries. Protons continue to be a fascinating subject of study for scientists and researchers worldwide.