Lutetium

Lutetium, ₇₁Lu
Lutetium
Pípè	/ljuːˈtiːʃiəm/ (lew-TEE-shee-əm)
Ìhànsójú	silvery white
Ìwúwo átọ̀mù Ar, std(Lu)	174.9668(1)
Lutetium ní orí tábìlì àyè
	ytterbium ← lutetium → hafnium
Nọ́mbà átọ̀mù (Z)	71
Ẹgbẹ́	group n/a
Àyè	àyè 6
Àdìpọ̀	Àdìpọ̀-d
Ẹ̀ka ẹ́límẹ́ntì	Lanthanide
Ìtò ẹ̀lẹ́ktrọ́nù	[Xe] 4f14 5d1 6s2
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan	2, 8, 18, 32, 9, 2
Àwọn ohun ìní ara
Ìfarahàn at STP	solid
Ìgbà ìyọ́	1925 K (1652 °C, 3006 °F)
Ígbà ìhó	3675 K (3402 °C, 6156 °F)
Kíki (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	414 kJ/mol
Molar heat capacity	26.86 J/(mol·K)
Atomic properties
Oxidation states	0, +1, +2, +3 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment
Electronegativity	Pauling scale: 1.27
Atomic radius	empirical: 174 pm
Covalent radius	17±8 pm
	Color lines in a spectral rangeSpectral lines of lutetium
Other properties
Natural occurrence	primordial
Crystal structure	hexagonal
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
Main isotopes of lutetium
	Àdàkọ:Category-inline; wo; ọ̀rọ̀; àtúnṣe; \| references

Àyọkà yìí tàbí apá rẹ̀ únfẹ́ àtúnṣe sí.

Ẹ le fẹ̀ jù báyìí lọ tàbí kí ẹ ṣàtúnṣe rẹ̀ lọ́nà tí yíò mu kúnrẹ́rẹ́. Ẹ ran Wikipedia lọ́wọ́ láti fẹ̀ẹ́ jù báyìí lọ.

Itokasi

↑ Meija, Juris; Coplen, Tyler B.; Berglund, Michael; Brand, Willi A.; De Bièvre, Paul; Gröning, Manfred; Holden, Norman E.; Irrgeher, Johanna et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry 88 (3): 265–91. doi:10.1515/pac-2015-0305.
↑ Yttrium and all lanthanides except Ce, Pm, Eu, Tm, Yb 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.
↑ Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics. CRC press. 2000. ISBN 0849304814. http://www-d0.fnal.gov/hardware/cal/lvps_info/engineering/elementmagn.pdf.