Livermorium - 116Lv: the essentials
- Name: livermorium
- Symbol: Lv
- Atomic number: 116
- Relative atomic mass (Ar): [ 293 ] (longest lived isotope)
- Standard state: presumably a solid at 298 K
- Appearance: unknown, but probably metallic and silvery white or grey in appearance
- Classification: Metallic
- Group in periodic table: 16
- Group name: Chalcogen
- Period in periodic table: 7
- Block in periodic table: p
- Shell structure: 220.127.116.11.32.18.6
- CAS Registry: 54100-71-9
Livermorium atoms have 116 electrons and the shell structure is 18.104.22.168.32.18.6. The ground state electronic configuration of neutral livermorium is [Rn].5f14.6d10.7s2.7p4 (a guess based upon that of polonium) and the term symbol of livermorium is 3P2 (a guess based upon guessed electronic structure).
An isotope of livermorium, 292Lv, was identified in the reaction of 248Cm with 48Ca. It is very shortlived and decomposes to a known isotope of element 114, 288114Fl.
Livermorium: physical properties
- Density of solid: 11200 (predicted) kg m-3
- Molar volume: 26 (rough estimate based upon density estimate) cm3
- Thermal conductivity: (no data) W m‑1 K‑1
Livermorium: heat properties
- Melting point: (no data) K
- Boiling point: (no data) K
- Enthalpy of fusion: 20.5 kJ mol-1
Livermorium: atom sizes
- Atomic radius (empirical): (no data) pm
- Molecular single bond covalent radius: 175 (coordination number 2) ppm
- van der Waals radius: (no data) ppm
- Pauling electronegativity: (no data) (Pauling units)
- Allred Rochow electronegativity: (no data) (Pauling units)
- Mulliken-Jaffe electronegativity: (no data)
Livermorium: orbital properties
- First ionisation energy: 724 kJ mol‑1
- Second ionisation energy: (no data) kJ mol‑1
- Third ionisation energy: (no data) kJ mol‑1
- Universe: (no data) ppb by weight
- Crustal rocks: (no data) ppb by weight
- Human: (no data) ppb by weight
Livermorium: crystal structure
Livermorium: biological data
- Human abundance by weight: (no data) ppb by weight
As only a very few atoms of livermorium have ever been made, it has no biological role.
Reactions of livermorium as the element with air, water, halogens, acids, and bases where known.
Livermorium: binary compounds
Binary compounds with halogens (known as halides), oxygen (known as oxides), hydrogen (known as hydrides), and other compounds of livermorium where known.
Livermorium: compound properties
Bond strengths; lattice energies of livermorium halides, hydrides, oxides (where known); and reduction potentials where known.
Livermorium: historyLivermorium was discovered by Yu.Ts. Oganessian, V.K. Utyonkov, Yu.V. Lobanov, F.Sh. Abdullin, A.N. Polyakov, I.V. Shirokovsky, Yu.S. Tsyganov, G.G. Gulbekian, S.L. Bogomolov, B.N. Gikal, A.N. Mezentsev, S. Iliev, V.G. Subbotin, A.M. Sukhov, O.V. Ivanov, G.V. Buklanov, K.Subotic, M.G. Itkis, K.J. Moody, J.F. Wild, N.J. Stoyer, M.A. Stoyer, R.W. Lougheed, C.A. Laue, Ye.A. Karelin, and A.N. Tatarinov in 2000 at Dubna, Russia. Origin of name: lawrence Livermore National Laboratory (USA)..
Isolation: results published on the 6th December 2000 concerning recent experiments at Dubna in Russia (involving workers from The Joint Institute for Nuclear Research, Dubna, Russian Federation; The Lawrence Livermore National Laboratory, California, USA; The Research Institute of Atomic Reactors, Dimitrovgrad, Russian Federation; and The State Enterprise Electrohimpribor, Lesnoy, Russian Federation) describe the decay of the isotope 292Lv (produced in the reaction of 248Cm with 48Ca) to 292Fl.
24896Cm + 4820Ca → 292116Lv + 4 n
This decayed 47 milliseconds later as follows to a previously identified isotope of element 114, Fl.
292116Lv → 288114Fl + 42He