Elementymology & Elements Multidict

memory peg	Artificial radioactive element melting point -- °C; -- °F boiling point -- °C; -- °F density -- g/cc; -- pounds/cubic foot
2000 Гћ.Г–. ГЋГЈГ Г­ГҐГ±ГїГ­ (Yu.Ts. Oganessian) and co-workers, Dubna, Russia. The name was adopted by IUPAC on May 31, 2012.
Lawrence Livermore National Laboratory, Livermore (Calif.)

First prepared in 2000 by Юрий Цолакович Оганесян (Yuri Tsolakovich Oganessian), and co-workers at the Лаборатория ядерных реакций им. Г.Н. Флерова / Flerov Laboratory of Nuclear Reactions, FLNR - ОИЯИ / JINR, Дубна (Dubna), Russia.

The second atom of 116 has been synthesized
From: Dubna: Science, Cooperation, Progress, 19 (3557) (11 May 2001). (on-line)

These May holidays have been marked by new and important event in the Flerov Laboratory of Nuclear Reactions of JINR. These days the experiments on synthesis of superheavy element with atomic number 116 in the fusion reaction of ⁴⁸Ca cyclotron U-400 accelerated ions and ²⁴⁸Cm target nuclei are in progress here.

These experiments have started with Gas Filled Separator in June 2000. That time on the 35th day of irradiation the first atom of element 116 with neutron number 176 has been synthesized. Daughter nuclei properties of elements 114, 112 and 110 - element 116 alpha-decay products - were in full consent with the properties of isotopes got in the earlier experiment on synthesis of element 114 in the reaction with lighter target of ²⁴⁴Pu. To confirm their own results the scientists repeated these experiments at the turn of 2000 and in January 2001. But those experiments have failed to synthesize new atom.

The forth round of the experiments have started in late April. Now on May 2 after the full number of ⁴⁸Ca ions passed through the target during the time of the experiment has reached 2x1019 the work of the scientists has been crowned with new success. One more atom of element 116 has been synthesized and this entirely confirmed the former results. This second atom of element 116 gives full assurance that the new elements with atomic numbers 114 and 116 have been synthesized in the Laboratory. Their properties confirm the hypothesis on the existence of the new domain of enhanced stability of superheavy elements.

The team repeated the experiment in April–May 2005 and detected 8 atoms of livermorium. The measured decay data confirmed the assignment of the discovery isotope as ²⁹³Lv. In this run, the team also observed ²⁹²Lv in the 4n channel for the first time. In May 2009, the Joint Working Party reported on the discovery of copernicium and acknowledged the discovery of the isotope ²⁸³Cn. This implied the de facto discovery of livermorium, as ²⁹¹Lv, from the acknowledgment of the data relating to the granddaughter ²⁸³Cn, although the actual discovery experiment may be determined as that above. In 2011, the IUPAC evaluated the Dubna team results and accepted them as a reliable identification of element 116.

The element was named Livermorium after the Lawrence Livermore National Laboratory on 31 May 2012. Formerly it was known under the systematic IUPAC name Ununhexium (system explained here). The element almost got the name Moscovium in honor of the oblast (region) of Moscow, where the research labs are located. The American researchers won out and the team settled on the name Livermorium (Lv), after the national labs and the city of Livermore in which they are located. Livermorium was first observed in 2000, when the scientists created it by mashing together calcium and curium.

Livermore, California, was named after Robert Thomas Livermore (Springfield, Essex 1799-Alameda County, California 1858), a local rancher who settled in the area in the 1830s. Robert Livermore never lived in the city that bears his name. William Mendenhall had met Livermore as part of Frémont's expedition, and when he founded the town in 1869, he named it after Livermore.
In 1952 the Lawrence Radiation Laboratory (named after E.O. Lawrence) was established in Livermore, in 1971 it was renamed Lawrence Livermore National Laboratory.

Further reading

• Wikipedia, Livermorium.