Lithium

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heliumlithiumberyllium
H

Li

Na
Ìfarahàn
silvery white (seen here in oil)
Àwọn ìní àníkárí
Orúkọ, àmì-ìdámọ̀, nọ́mbà lithium, Li, 3
Ẹ̀ka apilẹ̀sẹ̀ alkali metal
Àdìpọ̀, ìgbà, block 12, s
Ìwúwo átọ́mù 6.941(2)g·mol−1
Ìtòjọ ẹ̀lẹ́ktrónì 1s2 2s1
Àwọn ẹ̀lẹ́ktrónì lórí ọ̀nà kan 2, 1 (Image)
Àwọn ìní aláfójúrí
Phase solid
Kíki (tó súnmọ́ r.t.) 0.534 g·cm−3
Liquid density at m.p. 0.512 g·cm−3
ojúàmì ìyọ́ 453.69 K, 180.54 °C, 356.97 °F
ajúàmì ìhó 1615 K, 1342 °C, 2448 °F
Critical point (extrapolated)
3223 K, 67 MPa
Heat of fusion 3.00 kJ·mol−1
Heat of vaporization 147.1 kJ·mol−1
Specific heat capacity (25 °C) 24.860 J·mol−1·K−1
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, -1
(strongly basic oxide)
Electronegativity 0.98 (Pauling scale)
Ionization energies 1st: 520.2 kJ·mol−1
2nd: 7298.1 kJ·mol−1
3rd: 11815.0 kJ·mol−1
Atomic radius 152 pm
Covalent radius 128±7 pm
Van der Waals radius 182 pm
Miscellanea
Crystal structure body-centered cubic
Magnetic ordering paramagnetic
Electrical resistivity (20 °C) 92.8 nΩ·m
Thermal conductivity (300 K) 84.8 W·m−1·K−1
Thermal expansion (25 °C) 46 µm·m−1·K−1
Speed of sound (thin rod) (20 °C) 6000 m/s
Young's modulus 4.9 GPa
Shear modulus 4.2 GPa
Bulk modulus 11 GPa
Mohs hardness 0.6
CAS registry number 7439-93-2
Most stable isotopes
Main article: Isotopes of lithium
iso NA half-life DM DE (MeV) DP
6Li 7.5% 6Li is stable with 3 neutrons
7Li 92.5% 7Li is stable with 4 neutrons
6Li content may be as low as 3.75% in
natural samples. 7Li would therefore
have a content of up to 96.25%.

Lithium (play /ˈlɪθiəm/, LI-thee-əm) je is a soft, silver-white ide mulomulo fadaka-funfun to wa ni adipo ide alkali ti awon apilese kemika. O je sisoju pelu ami-idamo Li, beeni o si ni nomba atomu 3. Labe awon ipo opagun o je ide tofuyejulo ati apilese alaralile kiki die julo. Bi gbogbo awon ide alkali, lithium je adarapomora gidigidi, o si le gbana. Nitori idi eyi, inu epo alumoni lo ma unje fifipamosi. Nigba toba je gige, lithium ri bi luster onide, sugbon ti afefe tutu ba fe si oju re yio je kiakia to a dull silvery gray, then black, tarnish. Because of its high reactivity, lithium never occurs free in nature, and instead, only appears in compounds, usually ionic ones. Lithium occurs in a number of pegmatitic minerals, but is also commonly obtained from brines and clays. On a commercial scale, lithium is isolated electrolytically from a mixture of lithium chloride and potassium chloride.


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