Saturday, December 29, 2012

Livermorium

Livermorium

General properties
Name, symbol, number livermorium, Lv, 116
Element category unknown
Group, period, block 16, 7, p
Standard atomic weight (293)
Electron configuration [Rn] 5f14 6d10 7s2 7p4
(predicted)
2, 8, 18, 32, 32, 18, 6
(predicted)
History
Discovery Joint Institute for Nuclear Research and
Lawrence Livermore National Laboratory (2000)

Livermorium is the synthetic superheavy element with the symbol Lv and atomic number 116. The name was adopted by IUPAC on May 31, 2012.

It is placed as the heaviest member of group 16 (VIA) although a sufficiently stable isotope is not known at this time to allow chemical experiments to confirm its position as a heavier homologue to polonium.

It was first detected in 2000. Since then, about 35 atoms of livermorium have been produced, either directly or as a decay product of ununoctium, belonging to the four neighbouring isotopes with masses 290–293. The most stable isotope known is livermorium-293 with a half-life of ~60 ms.

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