Rare
Ununennium
Theoretical chemical element with atomic number 119 (Uue)
Ununennium
Ununennium, also known as eka-francium or element 119, is a hypothetical chemical element; it has symbol Uue and atomic number 119. Ununennium and Uue are the temporary systematic IUPAC name and symbol respectively, which are used until the element has been discovered, confirmed, and a permanent name is decided upon. In the periodic table of the elements, it is expected to be an s-block element, an alkali metal, and the first element in the eighth period. It is the lightest element that has not yet been synthesized. Attempts to synthesize the element have been ongoing since 2018 in RIKEN in Japan, and since 2026 at the Joint Institute for Nuclear Research in Dubna, Russia. The Heavy Ion Research Facility in Lanzhou, China (HIRFL) also plans to make an attempt. Theoretical and experimental evidence has shown that the synthesis of ununennium will likely be far more difficult than that of the previous elements. Ununennium's position as the seventh alkali metal suggests that it would have similar...
Open boosters, collect cards and trade them. Free to play.
Play for free