Element Barium - Ba

Comprehensive data on the chemical aspect Barium is provided on this page; consisting of scores of properties, element names in plenty of languages, most well-known nuclides of Barium. Typical chemical compounds room also detailed for numerous elements. In addition technical state are connected to their definitions and also the menu includes links come related short articles that room a great aid in one"s studies.

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Barium Menu

Barium page OneOverview of BariumBarium"s surname in other LanguagesAtomic framework of BariumChemical nature of BariumPhysical properties of BariumRegulatory / HealthWho/When/Where/HowBarium web page TwoNuclides / IsotopesPotential parental NuclidesBarium page ThreeCommon chemical Compounds of Barium

Overview the Barium

Atomic Number: 56Group: 2Period: 6Series: Alkali planet Metals

Barium"s name in various other Languages

Latin: BaryumCzech: BaryumCroatian: BarijFrench: BaryumGerman: Barium - sItalian: BarioNorwegian: BariumPortuguese: BárioRussian: БарийSpanish: BarioSwedish: BariumAtomic structure of BariumAtomic Radius: 2.78ÅAtomic Volume: 39.24cm3/molCovalent Radius: 1.98ÅCross Section (Thermal ghost Capture)σa/barns: 1.3Crystal Structure: Cubic human body centered
Electron Configuration:1s2 2s2p6 3s2p6d10 4s2p6d10 5s2p6 6s2Electrons per energy Level: 2,8,18,18,8,2Shell Model
Ionic Radius:
1.35ÅFilling Orbital: 6s2Number of electrons (with no charge): 56Number of neutrons (most common/stable nuclide): 81Number of Protons: 56Oxidation States: 2Valence Electrons: 6s2Electron period Model

Chemical nature of Barium

Electrochemical Equivalent:
2.5621g/amp-hrElectron work Function: 2.7eVElectronegativity: 0.89 (Pauling); 0.97 (Allrod Rochow)Heat the Fusion: 7.75kJ/molIncompatibilities:Ionization PotentialFirst: 5.212Second: 10.004Valence Electron Potential (-eV): 21.3

Physical properties of Barium

Atomic massive Average: 137.327Boiling Point: 2171K 1898°C 3448°FCoefficient of lineal thermal expansion/K-1: 18.1E-6ConductivityElectrical: 0.03 106/cm ΩThermal: 0.184 W/cmKDensity: 3.59g/cc
300KDescription:Soft hefty silver fancy metal.Elastic Modulus:Bulk: 9.6/GPaRigidity: 4.86/GPaYoungs: 12.8/GPaEnthalpy of Atomization: 175.7 kJ/mole
25°CEnthalpy that Fusion: 7.66 kJ/moleEnthalpy the Vaporization: 140 kJ/moleFlammablity Class:Freezing Point: see melt pointHardness ScaleMohs: 1.25Heat the Vaporization: 142kJ/molMelting Point: 1002K 729°C 1344°FMolar Volume: 38.21 cm3/molePhysical State (at 20°C & 1atm): SolidSpecific Heat: 0.204J/gKVapor Pressure = 98Pa

Regulatory / Health

CAS Number7440-39-3RTECS: CQ8370000NFPA 704Health: 2Fire: 2Reactivity:Special Hazard: OSHA permit Exposure limit (PEL)No limits collection by OSHAOSHA PEL Vacated 1989No limits collection by OSHANIOSH recommended Exposure limit (REL)No limits collection by NIOSH Levels In Humans:Note: this data represents naturally occuring level of elements in the usual human, it DOES NOT stand for recommended daily allowances.Blood/mg dm-3: 0.068Bone/p.p.m: 3-70Liver/p.p.m: 0.04-1.2Muscle/p.p.m: 0.09Daily diet Intake: 0.6-1.7 mgTotal massive In Avg. 70kg human: 22 mg

Who / wherein / as soon as / How

Discoverer: teacher Humphrey DavyDiscovery Location: London EnglandDiscovery Year: 1808Name Origin:Greek: barys (heavy or dense).Abundance that Barium:Earth"s Crust/p.p.m.: 500Seawater/p.p.m.: Atlantic Suface: 0.0047Atlantic Deep: 0.0093Pacific Surface: 0.0047Pacific Deep: 0.02Atmosphere/p.p.m.: N/ASun (Relative to H=1E12): 123Sources the Barium:Found in barytine (BaSO4) and also witherite (BaCO3),never found in pure form due to its reactivity. Total yearly world production estimated approximately 6,000,000 tons. Key mining areas are UK, Italy, Czech Republic, USA and also Germany. Total people reserves estimated to be roughly 450,000,000 tons.Uses of Barium:Used in sparkplugs, vacuum tubes, fireworks, fluorescent lamps. Insoluble barium sulfate is offered for body imaging.Additional Notes:Must it is in stored under kerosene to stay pure. Soluble barium salt are highly toxic.

Barium Menu

Barium web page OneOverview of BariumBarium"s name in other LanguagesAtomic structure of BariumChemical properties of BariumPhysical nature of BariumRegulatory / HealthWho/When/Where/HowBarium page TwoNuclides / IsotopesPotential parent NuclidesBarium page ThreeCommon chemical Compounds that Barium


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