Lutetium, 00 Lu Pronunciation (lew -TEE-shee -əm ) Appearance silvery white
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 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) Vapor pressure
P (Pa)
1
10
100
1 k
10 k
100 k
at T (K)
1906
2103
2346
(2653)
(3072)
(3663)
Oxidation state s0,[ 3] +1, +2, +3 (a weakly basic oxide) Electronegativity Pauling scale: 1.27 Ionization energies 1st: 523.5 kJ/mol 2nd: 1340 kJ/mol 3rd: 2022.3 kJ/mol Atomic radius empirical: 174 pm Covalent radius 187±8 pm Spectral line s of lutetiumNatural occurrence primordial Crystal structure hexagonal close-packed (hcp) Thermal expansion poly: 9.9 µm/(m⋅K) (at r.t. ) Thermal conductivity 16.4 W/(m⋅K) Electrical resistivity poly: 582 nΩ⋅m (at r.t. ) Magnetic ordering paramagnetic [ 4] 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 Naming after Lutetia , Latin for: Paris, in the Roman era Discovery Georges Urbain and Carl Auer von Welsbach (1906) First isolation Carl Auer von Welsbach (1906) Template:infobox lutetium isotopes does not exist Category: Lutetium | references
References
These references will appear in the article, but this list appears only on this page.
↑ "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 .
Infoboxes for the chemical element s use the core template {{ Infobox element }} .
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{{ Infobox element }} ; labels & notes:
(Image)
GENERAL PROPERTIES
Name
Symbol
Pronunciation (data central)
Alternative name(s)
Allotropes
Appearance
<element> IN THE PERIODIC TABLE
Periodic table
Atomic number
Standard atomic weight (data central)
Element category (also header bg color)
(sets header bg color, over 'series='-color)
Group
Period
Block
Electron configuration
Electrons per shell
PHYSICAL PROPERTIES
(general note)
Color
Phase
Melting point
Boiling point
Sublimation point
Density [g/L at s.t.p.]
Density [kg/m3 at s.t.p.]
Density [g/cm3 near room temperature]
[g/cm3 near r.t.], #2
[g/cm3 near r.t.], #3
Density (liquid, melting point) [g/cm3]
Density (liquid, boiling point) [g/cm3]
Molar volume
Unit defaults to cm3/mol
otherwise set unit prefix=d for dm3/mol (gases)
Triple point
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Vapor pressure
ATOMIC PROPERTIES
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MISCELLANEA
Crystal structure
Crystal structure
Speed of sound
Thermal expansion
Thermal conductivity
Thermal diffusivity
Electrical resistivity
Band gap
Curie point
Magnetic ordering
Tensile strength
Young's modulus
Shear modulus
Bulk modulus
Poisson ratio
Mohs hardness
Vickers hardness
Brinell hardness
CAS Number
HISTORY
Naming
Prediction
()
Discovery
()
First isolation
()
Discovery and first isolation (1 or 2 dates)
Named by
()
(History comment)
ISOTOPES OF <element>
Isotopes of <element>
(wp:engvar )
Isotopes are to be entered by the editor using these subtemplates:
Examples (from various elements):
| isotopes =
{{Infobox element/isotopes stable
| link=Fluorine-19 | mn=19 | sym=F | na=100% | n=10 }}
{{Infobox element/isotopes decay
| mn=251 | sym=Cf
| na=trace | hl=898 y
| dm=α | de=6.172 | link1=curium-247 | pn=247 | ps=Cm}}
{{Infobox element/isotopes decay2 | mn=252 | sym=Cf
| na=trace | hl=2.645 y
| dm1=α (96.91%)| de1=6.217 | link1=curium-248 | pn1=248 | ps1=Cm
| dm2=SF (3.09%)| de2=– | pn2= | ps2=–}}
{{Infobox element/isotopes decay3
| mn=26 | sym=Al | na=[[trace radioisotope|trace]] | hl={{val|7.17|e=5|ul=y}}
| dm1=[[Positron emission|β<sup>+</sup>]] | de1=1.17 | link1=magnesium-26
| pn1=26 | ps1=Mg
| dm2=[[electron capture|ε]] | de2=- | link2=magnesium-26 | pn2=26 | ps2=Mg
| dm3=[[Gamma radiation|γ]] | de3=1.8086 | pn3= | ps3=-
}}
{{Infobox element/isotopes decay3 (2 2 1)
| mn=22 | sym=Na | na=[[trace radioisotope|trace]]
| hl=[[1 E7 s|2.602]] [[year|y]] | dm1=[[Beta decay|β<sup>+</sup>]]→[[Gamma decay|γ]]
| de1a=0.5454 | link1a=neon-22 | pn1a=22 | ps1a=Ne*
| de1b=1.27453(2)<ref name=npa521_1>{{cite journal
| last=Endt | first=P. M.
| title=Energy levels of A = 21–44 nuclei (VII)
| journal=Nuclear Physics A | volume=521 | pages=1–400
| date=1990 | doi=10.1016/0375-9474(90)90598-G
| bibcode=1990NuPhA.521....1E
}}</ref> | pn1b=22 | ps1b=Ne
| dm2=[[electron capture|ε]]→[[Gamma decay|γ]]
| de2a=- | pn2a=22 | ps2a=Ne*
| de2b=1.27453(2)
| pn2b=22 | ps2b=Ne
| dm3=[[Beta decay|β<sup>+</sup>]] | de3=1.8200
| pn3=22 | ps3=Ne }}
{{Infobox element/isotopes_decay4 | mn=260 | sym=Md
| na=[[synthetic radioisotope|syn]] | hl=31.8 [[day|d]]
| dm1=SF | de1=- | pn1= | ps1=-
| dm2=α | de2=7.000 | link2=einsteinium-256 | pn2=256 | ps2=Es
| dm3=ε | de3=- | link3=fermium-260 | pn3=260 | ps3=Fm
| dm4=[[beta emission|β<sup>−</sup>]]
| de4=1.000 | link4=nobelium-260 | pn4=260 | ps4=No}}
|isotopes comment=reference{{sfn|Chisté|2006}}<br>
* = [[excited state]]
produces the subtable:
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{{ Periodic table (32 columns, micro) }}
When atomic number ≥ 119, the miniature periodic table shows an extended version (period 8 and up). See, for example, {{ Infobox ununennium }} .
References
These references will appear in the article, but this list appears only on this page.