116
Lv
Livermorium
293
Livermorium (Lv)
Post-Transition MetalGroup 16Period 7p-block-blockRadioactive
Livermorium is a synthetic superheavy element with symbol Lv and atomic number 116. It is an extremely radioactive element that has only been created in the laboratory and has not been observed in nature. The element is named after the Lawrence Livermore National Laboratory in the United States, which collaborated with the Joint Institute for Nuclear Research in Dubna, Russia to discover livermorium in 2000.
Latin name: Livermorium
Atomic Number
116
Atomic Mass
293 g/mol
Phase (STP)
Solid (predicted)
Electron Config.
[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁴ (predicted)
General
SymbolLv
Atomic Number116
Atomic Mass293 g/mol
CategoryPost-Transition Metal
Group16
Period7
Blockp-block
Electron Configuration[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁴ (predicted)
Valence Electrons16
Colourunknown (predicted metallic)
Physical Properties
Phase (STP)Solid (predicted)
Densitypredicted ~12 g/cm3
Melting Pointpredicted ~500 K
Boiling Pointpredicted ~1100 K
Atomic Properties
Oxidation States+2, +4
Ion ChargeLv2+/Lv4+
Nuclear & Hazards
RadioactiveYes
Half-life65 seconds (Lv-293)
Abundance
In Earth's Crust0%
Discovery & History
Discovery Year2000
Discovered ByJoint Institute for Nuclear Research (Dubna) and Lawrence Livermore National Laboratory
Country of DiscoveryRussia/USA
Isotopes of Livermorium
| Isotope | Abundance | Half-life | Decay |
|---|---|---|---|
| Lv-291 | — | ~19 milliseconds | α |
| Lv-293 | — | ~57 milliseconds | α |