Editing Template:Infobox cerium

{{Infobox element
|number=58
|symbol=Ce
|name=cerium
|abundance=
|abundance in earth's crust=
|abundance in oceans=
|abundance in solar system=
|left=[[lanthanum]]
|right=[[praseodymium]]
|above=–
|below=[[thorium|Th]]
|category=lanthanide
|period=6
|block=f
|image name=Cerium2.jpg
|appearance=silvery white
|electron configuration=&#91;[[xenon|Xe]]&#93; 4f<sup>1</sup> 5d<sup>1</sup> 6s<sup>2</sup>
|electron configuration ref=<ref>[http://physics.nist.gov/PhysRefData/IonEnergy/tblNew.html Ground levels and ionization energies for the neutral atoms], NIST</ref>
|electrons per shell=2, 8, 18, 19, 9, 2
|phase=solid
|density gpcm3nrt=6.770
|density gpcm3mp=6.55
|melting point K=1068
|melting point C=795
|melting point F=1463
|boiling point K=3716
|boiling point C=3443
|boiling point F=6229
|heat fusion=5.46
|heat vaporization=398
|heat capacity=26.94
|vapor pressure 1=1992
|vapor pressure 10=2194
|vapor pressure 100=2442
|vapor pressure 1 k=2754
|vapor pressure 10 k=3159
|vapor pressure 100 k=3705
|vapor pressure comment=
|crystal structure=double hexagonal close packed
|crystal structure comment=&beta;-Ce
|crystal structure 2=face-centered cubic
|crystal structure 2 comment=&gamma;-Ce
|oxidation states='''4''', '''3''', 2, 1
|oxidation states comment=(a&nbsp;mildly [[base (chemistry)|basic]] oxide)
|electronegativity=1.12
|number of ionization energies=4
|ionization energy 1=534.4
|ionization energy 2=1050
|ionization energy 3=1949
|atomic radius=181.8
|covalent radius=204±9
|magnetic ordering=[[paramagnetic]]
|magnetic ordering ref=<ref name=magnet>{{cite book |url=https://web.archive.org/web/20110303222309/http://www-d0.fnal.gov/hardware/cal/lvps_info/engineering/elementmagn.pdf|chapter=Magnetic susceptibility of the elements and inorganic compounds| editor = Lide, D. R. | title = CRC Handbook of Chemistry and Physics | edition = 86th | location = Boca Raton (FL) | publisher = CRC Press | year = 2005 | isbn = 0-8493-0486-5 }}
</ref>
|electrical resistivity unit prefix=n
|electrical resistivity=β, poly: 828
|electrical resistivity comment=(at&nbsp;{{abbr|r.t.|room temperature}})
|thermal conductivity=11.3
|thermal expansion=γ, poly: 6.3
|thermal expansion comment=(at&nbsp;{{abbr|r.t.|room temperature}})
|speed of sound rod at 20=2100
|magnetic susceptibility= (β) +2450.0·10<sup>−6</sup>
|magnetic susceptibility ref= &#x20;(293&nbsp;K)<ref>{{Cite book|title=CRC, Handbook of Chemistry and Physics|last=Weast|first=Robert|publisher=Chemical Rubber Company Publishing|year=1984|isbn=0-8493-0464-4|location=Boca Raton, Florida|pages=E110|quote=|via=}}</ref>
|Young's modulus=γ form: 33.6
|Shear modulus=γ form: 13.5
|Bulk modulus=γ form: 21.5
|Poisson ratio=γ form: 0.24
|Mohs hardness=2.5
|Vickers hardness=210–470
|Brinell hardness=186–412
|CAS number=7440-45-1
|isotopes=
{{infobox element/isotopes decay | mn=134 | sym=Ce
|na=[[synthetic radioisotope|syn]] | hl=3.16&nbsp;d
|dm=[[electron capture|ε]] | de=0.500 | link1=lanthanum-134 | pn=134 | ps=La}}
{{infobox element/isotopes stable | mn=136 | sym=Ce | na=0.186% | n=78 |firstlinks=yes}}
{{infobox element/isotopes stable | mn=138 | sym=Ce | na=0.251% | n=80 |firstlinks=no}}
{{infobox element/isotopes decay | mn=139 | sym=Ce
|na=syn | hl=137.640&nbsp;d
|dm=ε | de=0.278 | link1=lanthanum-139 | pn=139 | ps=La}}
{{infobox element/isotopes stable | mn=140 | sym=Ce | na=88.449% | n=82 |firstlinks=no}}
{{infobox element/isotopes decay | mn=141 | sym=Ce
|na=syn | hl=32.501&nbsp;d
|dm=[[beta emission|β<sup>−</sup>]] | de=0.581 | link1=praseodymium-141 | pn=141 | ps=Pr}}
{{infobox element/isotopes stable | mn=142 | sym=Ce
|na=11.114% | n=84 |firstlinks=no}}
{{infobox element/isotopes decay | mn=143 | sym=Ce
|na=syn | hl=33.039&nbsp;d
|dm=β<sup>−</sup> | de=1.462 | link1=praseodymium-143 | pn=143 | ps=Pr}}
{{infobox element/isotopes decay | mn=144 | sym=Ce
|na=syn | hl=284.893&nbsp;d
|dm=β<sup>−</sup> | de=0.319 | link1=praseodymium-144 | pn=144 | ps=Pr}}
|isotopes comment=
|naming=after dwarf planet [[Ceres (dwarf planet)|Ceres]], itself named after Roman deity of agriculture [[Ceres (mythology)|Ceres]]
|discovered by=[[Martin Heinrich Klaproth]], [[Jöns Jakob Berzelius]], [[Wilhelm Hisinger]]
|discovery date=1803
|first isolation by=[[Carl Gustaf Mosander]]
|first isolation date=1838
|QID=Q1385
}}<!--

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{{Infobox element/element navigation|symbol=Ce}}
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