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Cerium

Cerium is a chemical element; it has symbol Ce and atomic number 58, and is a soft, ductile, and silvery-white metal that tarnishes when exposed to air. Cerium is the second element in the lanthanide series, and while it often shows the oxidation state of +3 characteristic of the series, it also has a stable +4 state that does not oxidize water. It is…

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134Ce
synth
136Ce
0.186%
138Ce
0.251%
139Ce
synth
140Ce
88.4%
141Ce
synth

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Overview

Characteristics

Compounds

History

Occurrence and production

Applications

Biological role and precautions

Bibliography

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Cerium

Nodes174
Edges173
Triples246
Avg. degree1.99
Density0.011494
Components1

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Cerium

Top relations

related to Occurrence and production · 21
Cerium → Also, Bastnäsite, Because, Ce, Ce4, CeO2, Earth's, First, In, IV, Levinson, Ln2O3, LnIIICO3F, Monazite, O2, REE, Th, The, This, Thus
related to history · 18
Cerium → After, Bastnäs, Berzelius, Carl Gustaf Mosander, Ceres, Ceria, Germany, He, Humphry Davy, It, Jöns Jakob Berzelius, Martin Heinrich Klaproth, Mosander, Roman, Sweden, The, Tungsten, Wilhelm Hisinger
related to Other uses · 15
Cerium → Ce, Ce2S3, Ce3S4, CO, Despite, Fe, Manhattan Project, Mg, Mn, Ni, NOx, Other, Pu-Ce, Pu-Ce-Co, These Al-Ce
related to Oxides and chalcogenides · 15
Cerium → Ce, Ce2Z3, Ce3, CeO2, Ceria, CeZ, III, IV, Many, Se, Te, The, Thus, While CeZ2, Z2
related to Cerium(IV) complexes · 14
Cerium → Aqueous, Belousov, CAN, Ce, Ce4, Classically, Due, In, It, IV, NH4, NO3, The, Zhabotinsky
related to Halides · 14
Cerium → Aside, Br, Ce, CeCl2, CeF2, CeF4, CeX3, Cl, H2O, It, IV, The, Unlike, Upon
related to Gas mantles and pyrophoric alloys · 13
Cerium → Applications, Auschwitz, Austrian, Carl Auer, Due, In, Its, Primo Levi, Six, The, This, Usually, Welsbach
related to Physical · 10
Cerium → Ce2, Ce4, For, In, It, Its, Most, The, This, Xe
related to Chemical properties of the element · 8
Cerium → Being, Ce, Ce3, III, It, Like, More, The
related to Compounds · 7
Cerium → Ce, Ce3, Ce4, III, IV, The, This

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Important terminology

lanthanides ce used element oxide iv isotopes also metal stable known lanthanum oxidation lanthanide thorium praseodymium form ceria iii structure

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Cerium134Cesynth1.00infobox
Cerium136Ce0.186%1.00infobox
Cerium138Ce0.251%1.00infobox
Cerium139Cesynth1.00infobox
Cerium140Ce88.4%1.00infobox
Cerium141Cesynth1.00infobox
Cerium142Ce11.1%1.00infobox
Cerium143Cesynth1.00infobox
Cerium144Cesynth1.00infobox
CeriumAppearancesilvery white1.00infobox
Ceriumat T (K)19921.00infobox
CeriumAtomic number (Z)581.00infobox
CeriumAtomic radiusempirical: 181.8 pm1.00infobox
CeriumBlockf-block1.00infobox
CeriumBoiling point3716 K ​(3443 °C, ​6229 °F)1.00infobox
CeriumBrinell hardness186–412 MPa1.00infobox
CeriumBulk modulusγ-Ce: 21.5 GPa1.00infobox
CeriumCAS Number7440-45-11.00infobox
CeriumCovalent radius204±9 pm1.00infobox
CeriumCrystal structureβ-Ce: ​double hexagonal close-packed (dhcp) (hP4)1.00infobox
CeriumCrystal structureγ-Ce: ​face-centered cubic (fcc) (cF4)1.00infobox
CeriumDensity (at 20° C)β-Ce: 6.689 g/cm3 γ-Ce: 6.769 g/cm31.00infobox
CeriumDiscoveryMartin Heinrich Klaproth, Wilhelm Hisinger, Jöns Jakob Berzelius (1803)1.00infobox
CeriumElectrical resistivityβ-Ce, poly: 828 nΩ⋅m (at r.t.)1.00infobox
CeriumElectron configuration[Xe] 4f1 5d1 6s21.00infobox
CeriumElectronegativityPauling scale: 1.121.00infobox
CeriumElectrons per shell2, 8, 18, 19, 9, 21.00infobox
CeriumFirst isolationWilliam Francis Hillebrand (1875)1.00infobox
CeriumGroupf-block groups (no number)1.00infobox
CeriumHeat of fusion5.46 kJ/mol1.00infobox

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