మూస:Infobox lutetium

లుటీషియం, ₀₀Lu
లుటీషియం
Pronunciation	/ljuːˈtiːʃiəm/ (lew-TEE-shee-əm)
Appearance	silvery white
Standard atomic weight Ar°(Lu)
	174.9668±0.0001; 174.97±0.01 (abridged);
లుటీషియం in the periodic table
	యిటెర్బియం ← లుటీషియం → హాఫ్నియం
Group	మూస:Infobox element/symbol-to-group/format
Period	period 6
Block	d-block
Electron configuration	[Xe] 4f14 5d1 6s2
Electrons per shell	2, 8, 18, 32, 9, 2
Physical properties
Phase at STP	solid
Melting point	1925 K (1652 °C, 3006 °F)
Boiling point	3675 K (3402 °C, 6156 °F)
Density (near r.t.)	9.841 g/cm3
when liquid (at m.p.)	9.3 g/cm3
Heat of fusion	ca. 22 kJ/mol
Heat of vaporization	414 kJ/mol
Molar heat capacity	26.86 J/(mol·K)
Atomic properties
Oxidation states	0, +1, +2, +3 (a weakly basic oxide)
Electronegativity	Pauling scale: 1.27
Atomic radius	empirical: 174 pm
Covalent radius	187±8 pm
	Spectral lines of లుటీషియం
Other properties
Natural occurrence	primordial
Crystal structure	hexagonal close-packed (hcp)
Thermal expansion	(r.t.) (poly) 9.9 µm/(m⋅K)
Thermal conductivity	16.4 W/(m⋅K)
Electrical resistivity	(r.t.) (poly) 582 n Ω⋅m
Magnetic ordering	paramagnetic
Young's modulus	68.6 GPa
Shear modulus	27.2 GPa
Bulk modulus	47.6 GPa
Poisson ratio	0.261
Vickers hardness	1160 MPa
Brinell hardness	893 MPa
CAS Number	7439-94-3
History
Discovery	Georges Urbain and Carl Auer von Welsbach (1906)
First isolation	Carl Auer von Welsbach (1906)
Isotopes of లుటీషియం v; e;
	Template:infobox లుటీషియం isotopes does not exist
	Category: లుటీషియం; view; talk; edit; \| references

References

↑ "Standard Atomic Weights: Lutetium". CIAAW. 2007.
↑ Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; et al. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry (in ఇంగ్లీష్). doi:10.1515/pac-2019-0603. ISSN 1365-3075.
↑ Yttrium and all lanthanides except Ce and Pm have been observed in the oxidation state 0 in bis(1,3,5-tri-t-butylbenzene) complexes, see Cloke, F. Geoffrey N. (1993). "Zero Oxidation State Compounds of Scandium, Yttrium, and the Lanthanides". Chem. Soc. Rev. 22: 17–24. doi:10.1039/CS9932200017. and Arnold, Polly L.; Petrukhina, Marina A.; Bochenkov, Vladimir E.; Shabatina, Tatyana I.; Zagorskii, Vyacheslav V.; Cloke (2003-12-15). "Arene complexation of Sm, Eu, Tm and Yb atoms: a variable temperature spectroscopic investigation". Journal of Organometallic Chemistry. 688 (1–2): 49–55. doi:10.1016/j.jorganchem.2003.08.028.
↑ Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics (PDF). CRC press. 2000. ISBN 0849304814.

[1] "Standard Atomic Weights: Lutetium". CIAAW. 2007.

[CIAAW2021-2] Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; et al. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry (in ఇంగ్లీష్). doi:10.1515/pac-2019-0603. ISSN 1365-3075.

[Cloke1993-3] Yttrium and all lanthanides except Ce and Pm have been observed in the oxidation state 0 in bis(1,3,5-tri-t-butylbenzene) complexes, see Cloke, F. Geoffrey N. (1993). "Zero Oxidation State Compounds of Scandium, Yttrium, and the Lanthanides". Chem. Soc. Rev. 22: 17–24. doi:10.1039/CS9932200017. and Arnold, Polly L.; Petrukhina, Marina A.; Bochenkov, Vladimir E.; Shabatina, Tatyana I.; Zagorskii, Vyacheslav V.; Cloke (2003-12-15). "Arene complexation of Sm, Eu, Tm and Yb atoms: a variable temperature spectroscopic investigation". Journal of Organometallic Chemistry. 688 (1–2): 49–55. doi:10.1016/j.jorganchem.2003.08.028.

[magnet-4] Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics (PDF). CRC press. 2000. ISBN 0849304814.

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మూస:Infobox lutetium

References

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