Lítíọ̀mù

Lát'ọwọ́ Wikipedia, ìwé ìmọ̀ ọ̀fẹ́
(Àtúnjúwe láti Lithium)
Lọ sí: atọ́ka, àwárí
Lítíọ̀mù
3Li
H

Li

Na
hílíọ̀mùlítíọ̀mùberyllium
Ìhànsójú
onífàdákà-funfun (ó únléfòó èpo nínú àwòrán)


Spectral lines of lithium
Àwọn ìdámọ́ wíwọ́pọ̀
Orúkọ, àmì-ìdámọ́, nọ́mbà lítíọ̀mù, Li, 3
Ìpèlóhùn /ˈlɪθiəm/ LI-thee-əm
Ẹ̀ka ẹ́límẹ̀nti mẹ́tàlì álkálì
Ẹgbẹ́, àsìkò, àdìpò 12, s
Ìwúwo átọ́mù 6.94(1)
Ìtòléra ẹ̀lẹ́ktrónì [He] 2s1
2, 1
Electron shells of lithium (2, 1)
Ìtàn
Ìwárí Johan August Arfwedson (1817)
Ìyàsọ́tọ̀ àkọ́kọ́ William Thomas Brande (1821)
Physical properties
Phase adiramúle
Density (near r.t.) 0.534 g·cm−3
Liquid density at m.p. 0.512 g·cm−3
Melting point 453.69 K, 180.54 °C, 356.97 °F
Boiling point 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
Molar heat capacity 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
(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
Lítíọ̀mù has a body-centered cubic crystal structure
Magnetic ordering paramagnetic
Electrical resistivity (20 °C) 92.8 nΩ·m
Thermal conductivity 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−1
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
Àwọn ísótòpù dídúró jùlọ
Main article: Àwọn ísótòpù lítíọ̀mù
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%.
· r

Lítíọ̀mù (play /ˈlɪθiəmu/, LI-thee-əm) ni metali múlọ́múlọ́ fàdákà-funfun to wa ni ẹgbẹ́ mẹ́tàlì álkálì ti awon ẹ́límẹ̀ntì kẹ́míkà. Àmì-ìdámọ̀ rẹ̀ ni Li, tó sì ní nọ́mbà átọ̀mù 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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