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Template:Infobox cerium - Revision history
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<p><b>New page</b></p><div>{{Infobox element<br />
|engvar={{{engvar|}}}<br />
|number=58<br />
|symbol=Ce<br />
|name=cerium<br />
|abundance=<br />
|abundance in earth's crust=<br />
|abundance in oceans=<br />
|abundance in solar system=<br />
|left=[[lanthanum]]<br />
|right=[[praseodymium]]<br />
|above=–<br />
|below=[[thorium|Th]]<br />
|period=6<br />
|block=f<br />
|image name=Cerium2.jpg<br />
|appearance=silvery white<br />
|electrons per shell=2, 8, 18, 19, 9, 2<br />
|phase=<br />
|density gpcm3nrt=6.770<br />
|density gpcm3mp=6.55<br />
|melting point K=1068<br />
|melting point C=795<br />
|melting point F=1463<br />
|boiling point K=3716<br />
|boiling point C=3443<br />
|boiling point F=6229<br />
|heat fusion=5.46<br />
|heat vaporization=398<br />
|heat capacity=26.94<br />
|vapor pressure 1=1992<br />
|vapor pressure 10=2194<br />
|vapor pressure 100=2442<br />
|vapor pressure 1 k=2754<br />
|vapor pressure 10 k=3159<br />
|vapor pressure 100 k=3705<br />
|vapor pressure comment=<br />
|crystal structure=double hexagonal close packed<br />
|crystal structure comment=&beta;-Ce<br />
|crystal structure 2=face-centered cubic<br />
|crystal structure 2 comment=&gamma;-Ce<br />
|electronegativity=1.12<br />
|number of ionization energies=4<br />
|ionization energy 1=534.4<br />
|ionization energy 2=1050<br />
|ionization energy 3=1949<br />
|atomic radius=181.8<br />
|covalent radius=204±9<br />
|magnetic ordering=[[paramagnetic]]<br />
|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 }}<br />
</ref><br />
|electrical resistivity unit prefix=n<br />
|electrical resistivity=β, poly: 828<br />
|electrical resistivity comment=(at&nbsp;{{abbr|r.t.|room temperature}})<br />
|thermal conductivity=11.3<br />
|thermal expansion=γ, poly: 6.3<br />
|thermal expansion comment=(at&nbsp;{{abbr|r.t.|room temperature}})<br />
|speed of sound rod at 20=2100<br />
|magnetic susceptibility= (β) +2450.0·10<sup>−6</sup><br />
|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}}</ref><br />
|Young's modulus=γ form: 33.6<br />
|Shear modulus=γ form: 13.5<br />
|Bulk modulus=γ form: 21.5<br />
|Poisson ratio=γ form: 0.24<br />
|Mohs hardness=2.5<br />
|Vickers hardness=210–470<br />
|Brinell hardness=186–412<br />
|CAS number=7440-45-1<br />
|isotopes=<br />
{{infobox element/isotopes decay | mn=134 | sym=Ce<br />
|na=[[synthetic radioisotope|syn]] | hl=3.16&nbsp;d<br />
|dm=[[electron capture|ε]] | de=0.500 | link1=lanthanum-134 | pn=134 | ps=La}}<br />
{{infobox element/isotopes stable | mn=136 | sym=Ce | na=0.186% | n=78 |firstlinks=yes}}<br />
{{infobox element/isotopes stable | mn=138 | sym=Ce | na=0.251% | n=80 |firstlinks=no}}<br />
{{infobox element/isotopes decay | mn=139 | sym=Ce<br />
|na=syn | hl=137.640&nbsp;d<br />
|dm=ε | de=0.278 | link1=lanthanum-139 | pn=139 | ps=La}}<br />
{{infobox element/isotopes stable | mn=140 | sym=Ce | na=88.449% | n=82 |firstlinks=no}}<br />
{{infobox element/isotopes decay | mn=141 | sym=Ce<br />
|na=syn | hl=32.501&nbsp;d<br />
|dm=[[beta emission|β<sup>−</sup>]] | de=0.581 | link1=praseodymium-141 | pn=141 | ps=Pr}}<br />
{{infobox element/isotopes stable | mn=142 | sym=Ce<br />
|na=11.114% | n=84 |firstlinks=no}}<br />
{{infobox element/isotopes decay | mn=143 | sym=Ce<br />
|na=syn | hl=33.039&nbsp;h<br />
|dm=β<sup>−</sup> | de=1.462 | link1=praseodymium-143 | pn=143 | ps=Pr}}<br />
{{infobox element/isotopes decay | mn=144 | sym=Ce<br />
|na=syn | hl=284.893&nbsp;d<br />
|dm=β<sup>−</sup> | de=0.319 | link1=praseodymium-144 | pn=144 | ps=Pr}}<br />
|isotopes comment=<br />
|naming=after dwarf planet [[Ceres (dwarf planet)|Ceres]], itself named after Roman deity of agriculture [[Ceres (mythology)|Ceres]]<br />
|discovered by=[[Martin Heinrich Klaproth]], [[Jöns Jakob Berzelius]], [[Wilhelm Hisinger]]<br />
|discovery date=1803<br />
|first isolation by=[[Carl Gustaf Mosander]]<br />
|first isolation date=1838<br />
|QID=Q1385<br />
}}<!--<br />
<br />
--><noinclude><br />
{{Infobox element/element navigation|symbol=Ce}}<br />
{{Template reference list}}<br />
{{documentation|1=Template:Infobox element/doc}}<br />
</noinclude></div>
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