Template:Infobox lutetium/sandbox

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[[Category:Template:Pagetype with short description]]

Lutetium, 71Lu
Lutetium sublimed dendritic and 1cm3 cube.jpg
Lutetium
Pronunciation/ljˈtʃiəm/ (Template:Respell)
Appearancesilvery white
Standard atomic weight Ar, std(Lu)Template:Val[1]
Lutetium in the periodic table
Template:Periodic table (32 columns, micro)

Lu

Lr
ytterbiumlutetiumhafnium
Atomic number (Z)71
Groupgroup 3
Periodperiod 6
Block  d-block
Element categories, sometimes considered a transition metal
Electron configuration[Xe] 4f14 5d1 6s2
Electrons per shell2, 8, 18, 32, 9, 2
Physical properties
Phase at STPsolid
Melting point1925 K ​(1652 °C, ​3006 °F)
Boiling point3675 K ​(3402 °C, ​6156 °F)
Density (near r.t.)9.841 g/cm3
when liquid (at m.p.)9.3 g/cm3
Heat of fusionca. 22 kJ/mol
Heat of vaporization414 kJ/mol
Molar heat capacity26.86 J/(mol·K)
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1906 2103 2346 (2653) (3072) (3663)
Atomic properties
Oxidation states0,[2] +1, +2, +3 (a weakly basic oxide)
ElectronegativityPauling scale: 1.27
Ionization energies
  • 1st: 523.5 kJ/mol
  • 2nd: 1340 kJ/mol
  • 3rd: 2022.3 kJ/mol
Atomic radiusempirical: 174 pm
Covalent radius187±8 pm
Color lines in a spectral range
Spectral lines of lutetium
Other properties
Natural occurrenceprimordial
Crystal structurehexagonal close-packed (hcp)
Hexagonal close packed crystal structure for lutetium
Thermal expansionpoly: 9.9 µm/(m·K) (at r.t.)
Thermal conductivity16.4 W/(m·K)
Electrical resistivitypoly: 582 nΩ·m (at r.t.)
Magnetic orderingparamagnetic[3]
Young's modulus68.6 GPa
Shear modulus27.2 GPa
Bulk modulus47.6 GPa
Poisson ratio0.261
Vickers hardness755–1160 MPa
Brinell hardness890–1300 MPa
CAS Number7439-94-3
History
Namingafter Lutetia, Latin for: Paris, in the Roman era
DiscoveryCarl Auer von Welsbach and Georges Urbain (1906)
First isolationCarl Auer von Welsbach (1906)
Named byGeorges Urbain (1906)
Main isotopes of lutetium
[[Isotope|IsoTemplate:Shytope]] [[Natural abundance|AbunTemplate:Shydance]] Half-life (t1/2) Decay mode [[Decay product|ProTemplate:Shyduct]]
173Lu syn 1.37 y ε 173Yb
174Lu syn 3.31 y ε 174Yb
175Lu 97.401% stable
176Lu 2.599% 3.78×1010 y β 176Hf
Category Category: Lutetium
| references
Yb ←

i'box Yb

iso
71
Lu (E)
→ Hf

i'box Hf

  Data sets read by {{Infobox element}}
Name and identifiers
Top image (caption, alt)
Pronunciation
Category (enwiki)
Standard atomic weight
  most stable isotope
Natural occurrence
Phase at STP
Oxidation states
Spectral lines image
Electron configuration (cmt, ref)
Term symbol * (cmt, ref)
Wikidata *
* Not used in {{Infobox element}} (2019-02-03)
See also {{Infobox element/symbol-to--navbox}}

References

  1. Meija, Juris; 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.
  2. 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.
  3. Lide, D. R., ed. (2005). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5.

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