ലിഥിയം, 00Li
എണ്ണയിൽ പൊങ്ങി നിൽക്കുന്ന ലിഥിയും
ലിഥിയം
Pronunciation/ˈlɪθiəm/ (LITH-ee-əm)
Appearancesilvery-white
Standard atomic weight Ar°(Li)
ഫലകം:Infobox element/standard atomic weight format
ലിഥിയം in the periodic table
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson
H

Li

Na
heliumലിഥിയംberyllium
Groupgroup 1: hydrogen and alkali metals
Periodperiod 2
Block  s-block
Electron configuration[He] 2s1
Electrons per shell2, 1
Physical properties
Phase at STPsolid
Melting point453.65 K ​(180.50 °C, ​356.90 °F)
Boiling point1603 K ​(1330 °C, ​2426 °F)
Density (near r.t.)0.534 g/cm3
when liquid (at m.p.)0.512 g/cm3
Critical point3220 K, 67 MPa (extrapolated)
Heat of fusion3.00 kJ/mol
Heat of vaporization136 kJ/mol
Molar heat capacity24.860 J/(mol·K)
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 797 885 995 1144 1337 1610
Atomic properties
Oxidation states+1 (a strongly basic oxide)
ElectronegativityPauling scale: 0.98
Ionization energies
  • 1st: 520.2 kJ/mol
  • 2nd: 7298.1 kJ/mol
  • 3rd: 11815.0 kJ/mol
Atomic radiusempirical: 152 pm
Covalent radius128±7 pm
Van der Waals radius182 pm
Color lines in a spectral range
Spectral lines of ലിഥിയം
Other properties
Natural occurrenceprimordial
Crystal structurebody-centered cubic (bcc)
Body-centered cubic crystal structure for ലിഥിയം
Speed of sound thin rod6000 m/s (at 20 °C)
Thermal expansion46 µm/(m⋅K) (at 25 °C)
Thermal conductivity84.8 W/(m⋅K)
Electrical resistivity92.8 nΩ⋅m (at 20 °C)
Magnetic orderingparamagnetic
Molar magnetic susceptibility+14.2·10−6 cm3/mol (298 K)[1]
Young's modulus4.9 GPa
Shear modulus4.2 GPa
Bulk modulus11 GPa
Mohs hardness0.6
Brinell hardness5 MPa
CAS Number7439-93-2
History
DiscoveryJohan August Arfwedson (1817)
First isolationWilliam Thomas Brande (1821)
Isotopes of ലിഥിയം
Template:infobox ലിഥിയം isotopes does not exist
 വർഗ്ഗം: ലിഥിയം
| references
Li · Lithium
iso
Li E
→ H

ibox H

indexes by PT (page)
Data sets read by {{Infobox element}}
Name and identifiers
Top image
  image caption
  image alt
Pronunciation
Category (enwiki)
Standard atomic weight
  most stable isotope
Oxidation states
Spectral lines image

References

  1. Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.

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