tenessin

Tennessin is a chemical element with the symbol Ts and atomic number 117. It is a synthetic element and is extremely radioactive, with the most stable known isotope, tennessine-294, having a half-life of approximately 77 milliseconds. Tennessin was first synthesized in 2010 by a joint team of Russian and American scientists at the Joint Institute for Nuclear Research in Dubna, Russia, and Lawrence Livermore National Laboratory in California, USA. The element was named in 2016, and its name was officially recognized by the International Union of Pure and Applied Chemistry (IUPAC) in November 2016. The name "tennessine" is derived from the state of Tennessee, USA, which is home to the Oak Ridge National Laboratory, where some of the research on the element was conducted. Tennessin is a member of the halogen group on the periodic table, and its chemical properties are expected to be similar to those of its lighter homologs, such as iodine and astatine. However, due to its short half-life and the difficulty of producing and studying the element, its chemical properties are not yet well understood. Tennessin is not known to have any stable isotopes, and it is not found naturally on Earth. It is primarily produced in laboratories through nuclear reactions involving the bombardment of heavy targets with accelerated ions. The study of tennessin and other superheavy elements is an active area of research in nuclear physics, and scientists continue to explore the properties and behavior of these exotic elements.