Template:Infobox lithium

Lithium, ₃Li

Lithium floatin in ile
Lithium
Pronunciation	/ˈlɪθiəm/ ​(LITH-ee-əm)
Appearance	silvery-white
Standard atomic weight Ar, std(Li)	[7000693800000000000♠6.938, 7000699700000000000♠6.997] conventional: 7000694000000000000♠6.94
Lithium in the periodic cairt
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 Airn Cobalt Nickel Capper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Siller (element) 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 Gowd Mercur (element) Thallium Leid (element) 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 Ununtrium Flerovium Ununpentium Livermorium Ununseptium Ununoctium H ↑ Li ↓ Na helium ← lithium → beryllium
Atomic nummer (Z)	3
Group	group 1 (alkali metals)
Period	period 2
Block	s-block
Element category	Alkali metal
Electron confeeguration	[He] 2s1
Electrons per shell	2, 1
Pheesical properties
Phase at STP	solit
Meltin pynt	453.65 K ​(180.50 °C, ​356.90 °F)
Bylin pynt	1603 K ​(1330 °C, ​2426 °F)
Density (near r.t.)	0.534 g/cm3
when liquid (at m.p.)	0.512 g/cm3
Creetical pynt	3220 K, 67 MPa (extrapolatit)
Heat o fusion	3.00 kJ/mol
Heat o vapourisation	136 kJ/mol
Molar heat capacity	24.860 J/(mol·K)
Vapour pressur 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 strangly basic
Electronegativity	Pauling scale: 0.98
Ionisation energies	1st: 520.2 kJ/mol 2nd: 7298.1 kJ/mol 3rd: 11815.0 kJ/mol
Atomic radius	empirical: 152 pm
Covalent radius	128±7 pm
Van der Waals radius	182 pm
Colour lines in a spectral range Spectral lines o lithium
Ither properties
Naitural occurrence	primordial
Creestal structur	​body-centred cubic (bcc)
Speed o soond thin rod	6000 m/s (at 20 °C)
Thermal expansion	46 µm/(m·K) (at 25 °C)
Thermal conductivity	84.8 W/(m·K)
Electrical resistivity	92.8 nΩ·m (at 20°C)
Magnetic orderin	paramagnetic
Young's modulus	4.9 GPa
Shear modulus	4.2 GPa
Bulk modulus	11 GPa
Mohs haurdness	0.6
CAS Nummer	7439-93-2
History
Diskivery	Johan August Arfwedson (1817)
First isolation	William Thomas Brande (1821)
Main isotopes o lithium
Iso­tope Abun­dance Hauf-life (t1/2) Decay mode Pro­duct 6Li 7.5% stable 7Li 92.5% stable
6Li content mey be as law as 3.75% in naitural samples. 7Li would tharefor hae a content o up tae 96.25%.

style="text-align:left"| data m.p. cat
	in	calc from C	diff	report	ref
C	180.50	—	—
K	453.65	453.65	0
F	356.90	356.90	0
WD	453.7 !453.7 kelvin 180.5 Celsius 357.3 Fahrenheit
input	C: 180.50, K: 453.65, F: 356.90
comment

style="text-align:left"| data b.p. cat
	in	calc from C	diff	report	ref
C	1330	—	—
K	1603	1600	3
F	2426	2430	-4
WD	1317 !1317 Celsius
input	C: 1330, K: 1603, F: 2426
comment

References

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