›› Physical and chemical properties of Cesium

Atomic Number:55
Element Symbol:Cs
Element Name:Cesium
Atomic Weight:132.90545
Group Number:1
Group Name:Alkali metal
Period Number:6
Ground State Configuration:[Xe] 6s
Ground State Level:2S1/2
Standard State:Solid
Common Valences:0,1
Bond Length:530.9
Atomic Radius Empirical:260
Atomic Radius Calculated:298
Covalent Radius Empirical:225
Electron Affinity:45.5
First Ionization Energy:375.7
Pauling Electronegativity:0.79
Sanderson Electronegativity:0.22
Allred Rochow Electronegativity:0.86
Mulliken Jaffe Electronegativity:0.62
Density Of Solid:1879
Molar Volume:70.94
Youngs Modulus:1.7
Bulk Modulus:1.6
Mineral Hardness:0.2
Brinell Hardness:0.14
Electrical Resistivity:20
Melting Point:28.44
Boiling Point:671
Critical Temperature:1665
Thermal Conductivity:36
Enthalpy Of Fusion:2.09
Enthalpy Of Vaporization:65
Enthalpy Of Atmization:76
Most Common Oxidation Numbers:1
Color:Silvery gold
Discovered By:Gustav Kirchhoff, Robert Bunsen
Discovered At:Germany
Discovered When:1860
Origin Of Name:From the Latin word caesius meaning sky blue or heavenly blue

Calculate the molecular weight of Cesium or molecular weight Cs.

Also see the full list of chemical elements and atomic weights.

››Compounds that contain Cesium

Caesium Bicarbonate  CsHCO3
Caesium Carbonate  Cs2CO3
Caesium Chromate  Cs2CrO4
Caesium Chloride  CsCl
Caesium Fluoride  CsF
Cesium Metaborate  CsBO2
Cesium Bromide  CsBr
Cesium Bromate  CsBrO3
Cesium Cyanide  CsCN
Cesium Acetate  CH3CO2Cs
Cesium Chlorate  CsClO3
Cesium Perchlorate  CsClO4
Cesium Hydride  CsH
Cesium Iodide  CsI
Cesium Iodate  CsIO3
Cesium Periodate  CsIO4
Cesium Permanganate  CsMnO4
Cesium Amide  CsNH2
Cesium Nitrite  CsNO2
Cesium Nitrate  CsNO3
Cesium Azide  CsN3
Cesium Hydroxide  CsOH
Cesium Superoxide  CsO2
Cesium Vanadate  CsVO3
Cesium Oxalate  Cs2C2O4
Cesium Tetraiodocadamate  Cs2CdI4
Cesium Molybdate  Cs2MoO4
Cesium Oxide  Cs2O
Cesium Peroxide  Cs2O2
Cesium Sulfide  Cs2S
Cesium Sulfate  Cs2SO4
Cesium Selenide  Cs2Se
Cesium Telluride  Cs2Te
Cesium Tungstate  Cs2WO4
Cesium Tetraiodozincate  Cs2ZnI4