Template:Infobox cerium

{{Infobox element

|engvar ={{{engvar|}}}

|symbol =Ce

|Z =58

|number =58

|name =cerium

|abundance=

|abundance in earth's crust=

|abundance in oceans=

|abundance in solar system=

|left=lanthanum

|right=praseodymium

|above=–

|below=Th

|image name=Cerium2.jpg

|appearance=silvery white

|electrons per shell=2, 8, 18, 19, 9, 2

|phase=

|density=β-Ce: 6.689 g/cm³
γ-Ce: 6.769 g/cm³

|density conditions=(at 20° C)

|density gpcm3nrt=

|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 prefix=β-Ce:

|crystal structure=double hexagonal close packed

|crystal structure Pearson symbol=hP4

|lattice constants=a = 0.36811 nm
c = 1.1857 nm (at 20 °C){{cite book |last=Arblaster |first= John W. |title=Selected Values of the Crystallographic Properties of Elements |publisher=ASM International |publication-place=Materials Park, Ohio |date=2018 |isbn=978-1-62708-155-9}}

|crystal structure 2 prefix=γ-Ce:

|crystal structure 2=face-centered cubic

|crystal structure 2 Pearson symbol=cF4

|lattice constant 2=a = 0.51612 nm (at 20 °C)

|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={{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 }}

|electrical resistivity unit prefix=n

|electrical resistivity=β-Ce, poly: 828

|electrical resistivity comment=(at r.t.)

|thermal conductivity=11.3

|thermal expansion=

|thermal expansion comment=β-Ce: {{val|6.1|e=−6}}/K
γ-Ce: {{val|6.1|e=−6}}/K (at 20 °C)

|speed of sound rod at 20=2100

|magnetic susceptibility=β-Ce: {{val|+2450.0|e=−6}}

|magnetic susceptibility ref= (293 K){{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}}

|Young's modulus=γ-Ce: 33.6

|Shear modulus=γ-Ce: 13.5

|Bulk modulus=γ-Ce: 21.5

|Poisson ratio=γ-Ce: 0.24

|Mohs hardness=2.5

|Vickers hardness=210–470

|Brinell hardness=186–412

|CAS number=7440-45-1

|naming=after dwarf planet Ceres, itself named after Roman deity of agriculture Ceres

|discovered by=Martin Heinrich Klaproth, Jöns Jakob Berzelius, Wilhelm Hisinger

|discovery date=1803

|first isolation by=William Francis Hillebrand

|first isolation date=1875

|QID=Q1385

}}