Livermorium (Lv)
Isotopes of Livermorium
| Isotope | Atomic Mass | Half-life | Mode of Decay |
| Lv-290 | 290 | 0.029 seconds | α to Fl-286 |
| Lv-292 | 292 | 0.0525 seconds | α to Fl-288 |
Livermorium is the synthetic superheavy element with the symbol Lv and atomic number 116. It was discovered in 2000 by workers from the Joint Institute for Nuclear Research in Dubna, Russian Federation. It was named for the Lawrence Livermore National Laboratory in Livermore, California, USA.
Since then, about 35 atoms of livermorium have been produced, either directly or as a decay product of ununoctium. An isotope, Livermorium-292, was identified in the reaction of Curium-248 with Calcium-48. It is very short-lived and decomposes to a known isotope of element 114.
Properties of Livermorium
| Name | Livermorium |
| Symbol | Lv |
| Atomic number | 116 |
| Atomic weight | [293] |
| Standard state | Presumably a solid at 298 °K |
| CAS Registry ID | 54100-71-9 |
| Group in periodic table | 16 |
| Group name | Chalcogen |
| Period in periodic table | 7 |
| Block in periodic table | p-block |
| Color | Unknown, but probably metallic and silvery white or grey in appearance |
| Classification | Metallic |
| Melting point | 364–507 °C (extrapolated) |
| Boiling point | 762-862 °C (extrapolated) |
| Heat of fusion |
7.61 (extrapolated) kJ·mol-1 |
| Heat of vaporization |
42 (predicted) kJ·mol-1 |
| Density of solid | 11.2 g/cm3 (predicted) |
| Ground level electron configuration | [Rn]5f146d107s27p4 (predicted) |
