text: # Gadolinium
  Chăng-kō̤ Mìng-dĕ̤ng-ngṳ̄ Háng-cê gì bēng-buōng. / 參考閩東語漢字其版本。
  Gadolinium sê siŏh cṳ̄ng gĭng-sṳ̆k, iâ sê siŏh cṳ̄ng huá-hŏk nguòng-só.  Nguòng-cṳ̄ sê̤ṳ-só sê 64, huá-hŏk hù-hô̤ sê Gd.
  
title: Gadolinium
wikitext: {{twinLAT|釓}}
  {{Infobox element
  |number=64
  |symbol=Gd
  |name=Gadolini
  |laname=gadolinium
  |left=[[europium|Europi]]
  |right=[[terbium|Terbi]]
  |above=–
  |below=[[curium|Curi]]
  |series=lanthanum-hiê
  |period=6
  |block=f
  |group=n/a
  |image name=Gadolinium-4.jpg
  |appearance=silvery white
  |atomic mass=157.25
  |atomic mass ref=<ref name="IUPAC">[http://www.ciaaw.org/atomic-weights.htm Standard Atomic Weights 2013]. [[Commission on Isotopic Abundances and Atomic Weights]]</ref>
  |atomic mass 2=3
  |atomic mass comment=
  |electron configuration=&#91;[[xenon|Xe]]&#93; 4f<sup>7</sup> 5d<sup>1</sup> 6s<sup>2</sup>
  |electrons per shell=2, 8, 18, 25, 9, 2
  |phase=gó-tā̤
  |density gpcm3nrt=7.90
  |density gpcm3mp=7.4
  |melting point K=1585
  |melting point C=1312
  |melting point F=2394
  |boiling point K=3273
  |boiling point C=3000
  |boiling point F=5432
  |heat fusion=10.05
  |heat vaporization=301.3
  |heat capacity=37.03
  |vapor pressure 1=1836
  |vapor pressure 10=2028
  |vapor pressure 100=2267
  |vapor pressure 1 k=2573
  |vapor pressure 10 k=2976
  |vapor pressure 100 k=3535
  |vapor pressure comment=''(calculated)''
  |crystal structure=hexagonal close packed
  |oxidation states=1, 2, '''3'''
  |oxidation states comment=(a&nbsp;mildly [[base (chemistry)|basic]] oxide)
  |electronegativity=1.20
  |number of ionization energies=3
  |ionization energy 1=593.4
  |ionization energy 2=1170
  |ionization energy 3=1990
  |atomic radius=180
  |covalent radius=196±6
  |magnetic ordering=[[ferromagnetism|ferromagnetic]]-[[paramagnetic]] transition at 293.4 K
  |electrical resistivity unit prefix=µ
  |electrical resistivity=α, poly: 1.310
  |electrical resistivity comment=
  |thermal conductivity=10.6
  |thermal expansion=α poly: 9.4
  |thermal expansion comment=(at&nbsp;100&nbsp;°C)
  |speed of sound rod at 20=2680
  |Young's modulus=α form: 54.8
  |Shear modulus=α form: 21.8
  |Bulk modulus=α form: 37.9
  |Poisson ratio=α form: 0.259
  |Vickers hardness= 510–950
  |CAS number=7440-54-2
  |isotopes=
  {{infobox element/isotopes decay | mn=152 | sym=Gd
   | na=0.20% | hl=1.08×10<sup>14</sup>&nbsp;y
   | dm=[[alpha decay|α]] | de=2.205 | link1=samarium-148 | pn=148 | ps=Sm}}
  {{infobox element/isotopes decay | mn=154 | sym=Gd | na=2.18% | hl=– | dm=(α) | de=0.0812 | link1=samarium-150 | pn=150 | ps=Sm }}
  {{infobox element/isotopes decay | mn=155 | sym=Gd | na=14.80% | hl=– | dm=(α) | de=0.0812 | link1=samarium-151 | pn=151 | ps=Sm }}
  {{infobox element/isotopes decay | mn=156 | sym=Gd | na=20.47% | hl=– | dm=([[spontaneous fission|SF]]) | de=<71.541 | pn= | ps= }}
  {{infobox element/isotopes decay | mn=157 | sym=Gd | na=15.65% | hl=– | dm=(SF) | de=<70.531 | pn= | ps= }}
  {{infobox element/isotopes decay | mn=158 | sym=Gd | na=24.84% | hl=– | dm=(SF) | de=<70.965 | pn= | ps= }}
  {{infobox element/isotopes decay | mn=160 | sym=Gd
   | na=21.86% | hl=>1.3×10<sup>21</sup>&nbsp;y
   | dm=([[double beta decay|β<sup>−</sup>β<sup>−</sup>]]) | de=1.729 | link1=dysprosium-160 | pn=160 | ps=Dy}}
  |isotopes comment=Decay modes in parentheses are predicted, but have not yet been observed
  |naming=after the mineral [[Gadolinite]] (itself named after [[Johan Gadolin]])
  |discovered by=[[Jean Charles Galissard de Marignac]]
  |discovery date=1880
  |first isolation by=[[Lecoq de Boisbaudran]]
  |first isolation date=1886
  }}
  '''Gadolinium''' sê siŏh cṳ̄ng [[gĭng-sṳ̆k]], iâ sê siŏh cṳ̄ng [[huá-hŏk nguòng-só]].  [[Nguòng-cṳ̄ sê̤ṳ-só]] sê 64, huá-hŏk hù-hô̤ sê Gd.
  ==Huá-hŏk séng-cék==
  
  ==Éng-ê̤ṳng==
  
  ==Cié-chṳ̄==
  
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  [[分類:Huá-hŏk nguòng-só]]