Superheavy nuclei are atomic nuclei that contain a large number of protons and neutrons, typically more than 104 protons. These elements are found at the end of the periodic table and are often unstable, decaying quickly into lighter elements. Scientists study superheavy nuclei to understand the forces that hold atomic particles together and to explore the limits of the periodic table. The creation of superheavy nuclei usually occurs in laboratories through nuclear fusion, where lighter nuclei combine under extreme conditions. Notable examples include elements like oganesson and copernicium, which have been synthesized in particle accelerators. Research in this area may lead to discoveries about new elements and their potential applications.