Ununennium, also known [8] 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.

Ununennium, also known as element 119 (or eka-francium), is the as yet unknown chemical element with atomic number 119 and symbol Uue. Ununennium and Uue are the temporary systematic IUPAC name and symbol, until a permanent name is decided upon.

Ununennium, or element 119, is a predicted chemical element. Its symbol is Uue. Ununennium and Uue are substitute names made by the IUPAC, (meaning "one-one-nine-ium" in Latin) until permanent names are made. Ununennium is the element with the smallest atomic number that has not been created yet.

Darmstadtium is a synthetic chemical element; it has symbol Ds and atomic number 110. It is extremely radioactive: the most stable known isotope, darmstadtium-281, has a half-life of approximately 14 seconds.

Symbol: Uun Atomic Number: 110 Atomic Mass: (269.0) amu Melting Point: Unknown Boiling Point: Unknown Number of Protons/Electrons: 110 Number of Neutrons: 159 Classification: Transition Metal Crystal Structure: Unknown Density @ 293 K: Unknown Color: Unknown More information about the naming of the heavy elements is available. Atomic Structure

Jan 28, 2025 · Ununennium, known by its periodic number 119, is a yet-to-be-discovered element anticipated to join the periodic table’s family of elements. It is predicted to be an alkali metal, placing it in the same group as familiar elements like sodium and potassium, which are known for their reactivity and metallic properties.

Darmstadtium is a super-heavy radioactive element that does not exist in nature and breaks down in a matter of milliseconds following synthesis. Before it was synthesized, the element held the temporary name ununnilium (Uun).

Chemical properties of the element: Uun - Ununnilium. Includes the atomic number, atomic weight, crystal structure, melting point, boiling point, atomic radius, covalent radius, and more. | PhysLink.com.

Ununnilium is a metal in Group VIIIB and the 7th period. It is a synthetic element; none occurs naturally on earth. The element was discovered by Oganessian, et al., in 1987. The name Ununnilium and the symbol Uun are both temporary names suggested by the IUPAC. Uun is synthetic, just as all other elements beyond U.

Feb 24, 2022 · Ununennium is also known as eka-francium or element 119, is the hypothetical chemical element with symbol Uue and atomic number 119. The ununennium is predicted to be an alkali metal, taking its place in the periodic table.