Oganesson is an extremely rare element and is one of the newest additions to the periodic table. It was officially recognized in 2016, and there are very few experimental samples available. In fact, it is estimated that only a few atoms of oganesson have ever been produced in controlled laboratory conditions.
Oganesson is classified as a noble gas, but it has such a short half-life—around 0.89 milliseconds for its most stable isotope—that it does not occur naturally in the Earth’s atmosphere or crust. Its production is typically achieved through nuclear fusion reactions between heavier elements, which requires advanced technology and highly specialized facilities. This rarity makes oganesson primarily of interest for scientific research rather than practical applications.