Element Cesium - Cs

Comprehensive data top top the chemical element Cesium is provided on this page; consisting of scores that properties, aspect names in many languages, most recognized nuclides that Cesium. Common chemical compounds room also noted for plenty of elements. In enhancement technical terms are attached to your definitions and the menu includes links come related write-ups that space a an excellent aid in one"s studies.

You are watching: Number of valence electrons in cesium

Cesium Menu

Cesium web page OneOverview the CesiumCesium"s name in various other LanguagesAtomic structure of CesiumChemical properties of CesiumPhysical properties of CesiumRegulatory / HealthWho/When/Where/HowCesium page TwoNuclides / IsotopesPotential parent NuclidesCesium web page ThreeCommon chemical Compounds the Cesium

Overview that Cesium

Atomic Number: 55Group: 1Period: 6Series: Alkali Metals

Cesium"s name in other Languages

Latin: CaesiumCzech: CesiumCroatian: CezijFrench: CésiumGerman: Zäsium - sItalian: CesioNorwegian: CesiumPortuguese: CésioRussian: ЦеэийSpanish: CesioSwedish: CesiumAtomic framework of CesiumAtomic Radius: 3.34ÅAtomic Volume: 71.07cm3/molCovalent Radius: 2.35ÅCross Section (Thermal neutron Capture)σa/barns: 29Crystal Structure: Cubic human body centered
Electron Configuration:1s2 2s2p6 3s2p6d10 4s2p6d10 5s2p6 6s1Electrons per power Level: 2,8,18,18,8,1Shell Model
Ionic Radius:
1.67ÅFilling Orbital: 6s1Number of electron (with no charge): 55Number of neutron (most common/stable nuclide): 78Number of Protons: 55Oxidation States: 1Valence Electrons: 6s1Electron dot Model

Chemical properties of Cesium

Electrochemical Equivalent:
4.9587g/amp-hrElectron occupational Function: 2.14eVElectronegativity: 0.79 (Pauling); 0.86 (Allrod Rochow)Heat the Fusion: 2.092kJ/molIncompatibilities:Ionization PotentialFirst: 3.894Second: 25.1Valence Electron Potential (-eV): 8.62

Physical nature of Cesium

Atomic mass Average: 132.9054Boiling Point: 944K 671°C 1240°FCoefficient of lineal heat expansion/K-1: 97E-6ConductivityElectrical: 0.0489 106/cm ΩThermal: 0.359 W/cmKDensity: 1.873g/cc
300KDescription:Soft light silvery-white alkali metal.Elastic Modulus:Bulk: 1.6/GPaRigidity: 0.65/GPaYoungs: 1.7/GPaEnthalpy that Atomization: 78.2 kJ/mole
25°CEnthalpy that Fusion: 2.1 kJ/moleEnthalpy of Vaporization: 65.9 kJ/moleFlammablity Class:Freezing Point: see melt pointHardness ScaleBrinell: 0.14 MN m-2Mohs: 0.2Heat of Vaporization: 67.74kJ/molMelting Point: 301.7K 28.55°C 83.39°FMolar Volume: 70.73 cm3/molePhysical State (at 20°C & 1atm): SolidSpecific Heat: 0.24J/gKVapor Pressure 2.5kPa

Regulatory / Health

CAS Number7440-46-2RTECS: FK9225000OSHA permit Exposure limit (PEL)No limits collection by OSHAOSHA PEL Vacated 1989No limits set by OSHANIOSH encourage Exposure border (REL)No limits set by NIOSH Levels In Humans:Note: this data represents naturally occuring levels of aspects in the usual human, that DOES NOT represent recommended daily allowances.Blood/mg dm-3: 0.0038Bone/p.p.m: 0.013-0.052Liver/p.p.m: 0.04-0.05Muscle/p.p.m: 0.07-1.6Daily dietary Intake: 0.004-0.03 mgTotal massive In Avg. 70kg human: 6 mg

Who / wherein / once / How

Discoverer: Gustov R. Kirchoff, Robert BunsenDiscovery Location: Heidelberg GermanyDiscovery Year: 1860Name Origin: Latin: caesius (sky blue); that is salts revolve flames blue.Abundance of Cesium:Earth"s Crust/p.p.m.: 3Seawater/p.p.m.: 0.0003Atmosphere/p.p.m.: N/ASun (Relative come H=1E12): 80Sources the Cesium:Found in pollucite <(Cs4Al4Si9O26).H2O> and also as map in lepidolite. Human being production is about 20 lots per year. Main mining locations are in Bernic Lake (Manitoba, Canada), Bikita (Zimbabwe) and also South-West Africa.Uses the Cesium:Used as a "getter" to remove air traces in vacuum tubes. Due to the fact that it ionizes readily, that is provided as an ion rocket engine propellant. Also used in photoelectric cells, atomic clocks, infared lamps.Additional Notes:Cesium have the right to have very serious results on the body if bring away in excess.

Cesium Menu

Cesium page OneOverview the CesiumCesium"s surname in various other LanguagesAtomic framework of CesiumChemical properties of CesiumPhysical properties of CesiumRegulatory / HealthWho/When/Where/HowCesium web page TwoNuclides / IsotopesPotential parental NuclidesCesium page ThreeCommon chemistry Compounds of Cesium


A perform of referral sources supplied to compile the data noted on our periodic table of facets can be uncovered on the main periodic table page.

Related Resources

Anatomy of the AtomAnswers numerous questions concerning the framework of atoms.Molarity, Molality and NormalityIntroduces stoichiometry and also explains the differences in between molarity, molality and normality.Molar fixed Calculations and also Javascript CalculatorMolar mass calculations space explained and also there is a JavaScript calculator to assist calculations.Chemical DatabaseThis database focuses on the most typical chemical compounds offered in the home and industry.

Citing this page

If you need to cite this page, you deserve to copy this text:

Linking come this page

If you would prefer to connect to this web page from her website, blog, etc., copy and also paste this link code (in red) and modify it to suit her needs:

echo regular Table the Elements: Cesium - Cs (rebab.net)- an extensive information because that the facet Cesium - Cs is provided by this page consisting of scores of properties, element names in numerous languages, most well-known nuclides and also technical terms are connected to their definitions..

NOTICE: while linking to short articles is encouraged, OUR short articles MAY not BE copied TO OR REPUBLISHED ON an additional WEBSITE UNDER any kind of CIRCUMSTANCES.

PLEASE, if you like an write-up we released simply connect to that on our website carry out not republish it.

26 year on the web


Please re-superstructure and/or connect To This Page

Please re-superstructure and/or link to this page if you find it advantageous or informative.


We space a good educational resource! use online or print pages out as classroom handouts. An ext info.

See more: Can Dogs Get Parvo From Cats, (Contagious Research Results)

Career Listings

Biology careers in CAChemical design careers in CAChemistry careers in CAEcologists careers in CAEducation careers in CAEnvironmental careers in CAEnvironmental chemists careers in CAEnvironmental Compliance careers in CAEnvironmental Consultant careers in CAEnvironmental design careers in CAEnvironmental legislation careers in CAForestry careers in CAGIS careers in CAGovernment careers in CAHealth & security careers in CARegulatory Compliance careers in CARisk management careers in CAScience careers in CA
Biology careers in UKChemical engineering careers in UKChemistry careers in UKEcologists careers in UKEducation careers in UKEnvironmental careers in UKEnvironmental Consultant careers in UKEnvironmental design careers in UKEnvironmental law careers in UKGIS careers in UKHazardous Materials/Waste careers in UKHealth & safety careers in UKRegulatory Compliance careers in UKRisk administration careers in UKScience careers in UK
Biomedical engineering careers in USChemical engineering careers in USChemistry careers in USConservation careers in USEcologists careers in USEmergency administration careers in USEnvironmental Careers careers in USEnvironmental Analyst careers in USEnvironmental chemistry careers in USEnvironmental Compliance careers in USEnvironmental Consultant careers in USEnvironmental design careers in USEnvironmental regulation careers in USEnvironmental plan careers in USHealth & safety and security careers in USNatural resources careers in USNature preserves careers in USRegulatory Compliance careers in USRisk monitoring careers in USSchool Principals careers in US
Job Listing Search:All CategoriesAccountingAdmin & ClericalBankingBiotechBroadcast/JournalismBusiness DevelopmentConstructionConsultantCustomer ServiceDesignDistribution/ShippingEducationEngineeringExecutiveFacilitiesFinanceGeneral BusinessGovernmentHealth CareHuman ResourcesInformation TechnologyInsuranceInventoryLegalManagementManufacturingMarketingNursePharmaceuticalProfessional ServicesPurchasing/ProcurementQA/Quality ControlResearchSalesScienceSupply ChainTelecommunicationsTrainingTransportationWarehouseCanadaIndiaU.K.U.S.


Periodic TableNitrogen Dioxide, Ozone & Lead partner to rise Pollution threats to city ChildrenPlastics - native Recycling Bin to new Product

Go Green

RedecoratingPainting WallsReplacing CarpetsUpdating light FixturesBathroom RenovationInstalling a low circulation showerhead switching to Renewable EnergyBuying neighborhood clean strength electricityKitchen remodeling - coming in 2010 or 2011Weatherization - Coming so late 2009Energy AuditRevised ROI Calculations

Environmental Issues

ADA referral for Fluoride in infant DietsAsbestosAsbestos, a Brief history its uses & health RisksAsbestos, its chemical & physical PropertiesAsbestos: A Manufacturing health Hazard dating to ancient TimesDry-Cleaning ChemicalsLooking Good, feeling Bad; or, What"s the trouble with Perc?Are over there Realistic Dry-Cleaning alternatives to Perc?DuPont"s Teflon Cover-upNeurodevelopmental disorders in Children: Autism & ADHDPCBs in the food girlfriend loveSeafood SafetyMercury in Fish vs. The services of Fish OilsNorwegian Farmed Salmon Raises an international ConcernThe dangers of Lawn chemicals at Home
Biofueling come the futureCO2 air pollution and worldwide WarmingCompact Fluorescent lights (CFLs): room They worth the Switch?Global patterns in Energy modern technology InnovationHydrogen Fuel Cells: power of the Future
ChernobylChernobyl RevisitedAgricultural and also Environmental ImpactA turning PointFrom Bhopal to Hazardous rubbish ComplianceLove Canal NY: Grownups Don"t carry out Blue GooNew Orleans, Hurricane Katrina & the Oil Industry
Environmental Justice and the NIMBY PrinciplePrairie Dogs: little mammal, huge controversyPrairie Dogs: A Threatened species or Public health Nuisance?Prairie Dog Control: Non-Lethal TechniquesPrairie Dog Control: Lethal TechniquesCan Prairie dogs be controlled Utilizing Reconciliation Ecology?Pseudoscience: A danger to our EnvironmentSorting out science from Junk Science
Effects the Air contamination on her healthClean Air plot Contributing come Mercury ProblemNitrogen Dioxide, Ozone & Lead partner to increase Pollution dangers to urban ChildrenThe Heat dealing with Outdoor Wood furnaces & Boilers
PCBs in new York"s Hudson RiverIncreased Mercury levels Attributed to industrial ActivitiesEnvironmental contamination of the Concord River
Guide to managing Household ChemicalsHow Well do You recognize Recycled Paper?Protecting Wildlife indigenous TrashPlastics - from Recycling Bin to new ProductRoHS: Europe"s Initiative to Control technical WasteTreatment the Biohazardous WasteThe background of Waste


Anatomy that the AtomThe Chemistry of Polychlorinated BiphenylsMolar mass Calculations and also Molecular load CalculatorStoichiometry: Molarity, Molality and also NormalityWhat friend Do and also Don"t Know around Fluorine
Chemical DatabaseChemistry DictionaryPeriodic Table of ElementsSort regular table by: pick orderAtomic RadiusBoiling PointCovalent RadiusCross SectionCrystal StructureDensityElectrical ConductivityEletronegativityFreezing PointHeat of VaporizationIonic RadiusIonization PotentialMass AverageMelting PointNamePeriodic TableSeriesSymbolThermal ConductivityYear of Discovery

Hazardous Materials

Guide to dealing with Household ChemicalsThe risks of Lawn chemistry at Home
Emergency solution Guidebook (ERG)List materials byUN NumberMaterial Name49CFR USDOT Hazardous materials TableUSDOT HazMat Placards select Class/Div.1 Explosives2 Compressed Gas3 Flammable Liquid4 Flammable Solids5 Oxidizers6.1 Poisons7 Radioactives8 Corrosives9 MiscellaneousRelated MarkingsPlacarding QuizUSDOT HazMat Placards CD & cultivate modulesExceptions, Exemptions and also VariancesFMCSA HazMat Transportion allow System