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Caesium

Caesium (IUPAC spelling; also spelled cesium in American English) is a chemical element; it has symbol Cs and atomic number 55. It is a soft, silvery-golden alkali metal with a melting point of 28.5 °C (83.3 °F; 301.6 K), which makes it one of only five elemental metals that are liquid at or near room temperature. Caesium has physical and chemical…

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131Cs
synth
133Cs
100%
134Cs
synth
135Cs
trace
137Cs
synth
Alternative name
cesium (US)

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Health and safety hazards

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Map overview Semantic statistics

Caesium

Nodes363
Edges362
Triples234
Avg. degree1.99
Density0.00551
Components1

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Caesium

Top relations

related to External links · 21
Caesium → Andrey Yu, Angewandte Chemie, Bibcode, Cesium, CsF2, Fluorine, Gabriel, Hoffmann, Mao-Sheng, Merino, Miao, Mineral Commodity Summaries, Molecular CsF5, Nottingham, Roald, Rogachev, The Periodic Table, The Royal Institution, University, Videos
related to Occurrence · 19
Caesium → Al, AlSi, Be, Because, BF, Consequently, Cs, Cs2O, Due, During, Earth's, It, KCl, KMgCl, Percentage, SiO, The, Therefore, Within
related to history · 17
Caesium → After, Because, Bunsen, Cs, Dürkheim, From, Germany, Gustav Kirchhoff, In, Kirchhoff, Latin, Potassium, Rb, Robert Bunsen, The, To, US
related to Compounds · 12
Caesium → Cs, CsF, CsSbCl, Its, Many, More, Most, One, Oxides, Salts, The, This
related to Chemical properties · 11
Caesium → As, Because, Cs, GPa, However, In, It, Some, The, This, Under
related to Production · 11
Caesium → After, CeCl, Cs, CsCl, HBr, HCl, HF, In, Mining, The, With
related to Physical properties · 10
Caesium → At, Copernicium, CsHg, In, It, Mercury, Mohs, Of, The, When
related to Spelling · 10
Caesium → ACS, Applied Chemistry, In, International Union, IUPAC, Latin, Pure, The, The American Chemical Society, Webster's New International Dictionary
has application · 9
Caesium → As, Caesium-134, Caesium-137, It, Its, Known, Radioactive, The, While
related to Petroleum exploration · 9
Caesium → Alkali, Aqueous, Completion, Cs, Furthermore, HCOO, The, Unlike, ZnBr

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Important terminology

cs used metal metals also alkali element chloride rubidium caesium-137 water potassium compounds pollucite stable nuclear applications sodium isotopes atomic

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Caesium131Cssynth1.00infobox
Caesium133Cs100%1.00infobox
Caesium134Cssynth1.00infobox
Caesium135Cstrace1.00infobox
Caesium137Cssynth1.00infobox
CaesiumAlternative namecesium (US)1.00infobox
CaesiumAppearancepale gold1.00infobox
Caesiumat T (K)4181.00infobox
CaesiumAtomic number (Z)551.00infobox
CaesiumAtomic radiusempirical: 265 pm1.00infobox
CaesiumBlocks-block1.00infobox
CaesiumBoiling point944 K ​(671 °C, ​1240 °F)1.00infobox
CaesiumBrinell hardness0.14 MPa1.00infobox
CaesiumBulk modulus1.6 GPa1.00infobox
CaesiumCAS Number7440-46-21.00infobox
CaesiumCovalent radius244±11 pm1.00infobox
CaesiumCritical point1938 K, 9.4 MPa1.00infobox
CaesiumCrystal structure​body-centred cubic (bcc) (cI2)1.00infobox
CaesiumDensity (at 20° C)1.886 g/cm31.00infobox
CaesiumDiscoveryGustav Kirchhoff and Robert Bunsen (1860)1.00infobox
CaesiumElectrical resistivity205 nΩ⋅m (at 20 °C)1.00infobox
CaesiumElectron configuration[Xe] 6s11.00infobox
CaesiumElectronegativityPauling scale: 0.791.00infobox
CaesiumElectrons per shell2, 8, 18, 18, 8, 11.00infobox
CaesiumFirst isolationCarl Setterberg (1882)1.00infobox
CaesiumGroupgroup 1: hydrogen and alkali metals1.00infobox
CaesiumHeat of fusion2.09 kJ/mol1.00infobox
CaesiumHeat of vaporization63.9 kJ/mol1.00infobox
CaesiumIonization energies1st: 375.7 kJ/mol1.00infobox
CaesiumIonization energies2nd: 2234.3 kJ/mol1.00infobox

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