Periodic Table -> Livermorium
Livermorium DetailsLivermorium Symbol:
LvLivermorium Atomic Number:
116Livermorium Atomic Weight:
(293)What is Livermorium?
(atomic number 116, symbol Lv) is an artificially made element which was isolated in 2000.
Properties, Isotopes, and Similarities with Other Elements
This is a super heavy, highly radioactive element produced by nuclear reactions. Some of its isotopes have been isolated, namely Lv-295, Lv-294, Lv-288, and Lv-285. All isotopes studied so far are unstable. The longest-lived isotope of Livermorium is Lv-293, with a half life of 61 milliseconds. The shortest-lived isotope is Livermorium-290. Its half life is only 7.1 milliseconds. Fusion reactions of Ca-48 and Cm-243 produce lighter isotopes.
This is a group 16 element, together with polonium, tellurium, selenium, sulfur, and oxygen. It is expected to have 3 oxidation states – +4, +2, and -2. Little is known about Livermorium and its isotopes. Its density, electron configuration, atomic radius, and heat of fusion are unknown. Its covalent radius and melting point are also unknown. Livermorium has an atomic weight of 293 and is a period 7 element, along with fermium, californium, neptunium, and uranium. It is a p-block element with 116 protons and 116 electrons. Other p-block elements include polonium, fluorine, krypton, gallium, and aluminum. Livermorium’s atomic radius is predicted to be 183 pm and its heat of density – 12.9 grams per cubic centimeter. Lv is a transactinide element and should be solid at room temperature. It is the heaviest 16 group element and is expected to share properties with polonium. Polonium is a metalloid and a rare element with radioactive properties. It is a silvery-gray semi-metal which reacts with alkalis and dilute acids. The element also shares properties with tellurium, selenium, and sulfur. Sulfur is a tasteless and odorless nonmetal while selenium is a non-metal found in the form of brick-red powder. Tellurium is a brittle and lustrous semi-metal with a silvery-white color. Livermorium has similar properties to oxygen which is an odorless and colorless gas. The element is predicted to have a melting point in the range of 364 °C – 507 °C and boiling point from 762 °C to 862 °C.
Discovery, Isotopes Detected, and Naming
Several unsuccessful attempts at isolating the element were made in the late 1990s. Livermorium was first isolated in 2000 by researchers at JINR. They used Ca-48 ions to bombard Cm-248. A single atom was produced which decayed to a flerovium isotope (Fl-289). The discovery of Lv-289 and Lv-286 was confirmed by the Lawrence Berkeley National Laboratory and GSI in 2009. Two atoms of Lv-292 were also produced. The isotope has a very short half life of just 18 milliseconds.
The name ununhexium was initially proposed but scientists called it element 116 prior to discovery. It was named after the Lawrence Livermore National Laboratory which cooperated with the Joint Institute for Nuclear Research on its discovery.
Uses and Role
There are no known uses outside of scientific research. It is only synthesized in research settings and does not occur naturally. Because of its very short half life, it is not a health hazard.
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