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Lithium Metal Solid
Symbol: Li
Atomic number: 3
Atomic mass: 6.941
Group: Alkali Metal
CAS-number: 7439-93-2
 
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Physical data
Electronic data  Thermal data  Steric data
Shells: 2,1
Orbitals: [He] 2s1
Electronegativity: 1.0, 1.0
1. Ionization potential: 5.3917 eV
2. Ionization potential: 76.638 eV
3. Ionization potential: 122.451 eV
Oxidation states: 1
Electrical conductivity: 0.108 10^6
 Melting point: 180.54 °C
Boiling point: 1342 °C
Specific heat: 3.6 J/gK
Heat of fusion: 3.00 kJ/mol
Heat of vaporization: 145.920 kJ/mol
Thermal conductivity: 0.847 W/cmK
 Atomic radius: 2.05 Å
Ionic radius: 0.76 Å ()
Covalent radius: 1.23 Å
Atomic volume: 13.10 cm³/mol
Density (293 K): 0.53 g/cm³
Crystal structure: Cubic: Body centered
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Isotopes
NuclideAbundance [%]MassSpinHalflifeDecay modeDecay tree
6Li7.426.01511--stable--
7Li92.587.0163/2--stable--
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Other info
Name origin:Greek: lithos (stone)
Description:Soft silvery-white metal. Lightest of metals. Accounts for only 0.0007% of the earth's crust.
Discovered by:Johann Arfwedson
Year:1817
Place:Sweden
Sources:Obtained by passing electric charge through melted lithium chloride and from the silicate mineral called spodumene [LiAl(Si2O6)].
Use(s):Used in batteries. Also for certain kinds of glass and ceramics. Some is used in lubricants.
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