Element Molybdenum - Mo

Comprehensive data ~ above the chemical facet Molybdenum is detailed on this page; consisting of scores that properties, aspect names in numerous languages, most well-known nuclides the Molybdenum. Common chemical compounds room also provided for many elements. In enhancement technical state are connected to your definitions and the menu contains links to related articles that space a great aid in one"s studies.

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Molybdenum Menu

Molybdenum web page OneOverview of MolybdenumMolybdenum"s surname in other LanguagesAtomic framework of MolybdenumChemical nature of MolybdenumPhysical nature of MolybdenumRegulatory / HealthWho/When/Where/HowMolybdenum page TwoNuclides / IsotopesPotential parent NuclidesMolybdenum web page ThreeCommon chemistry Compounds that Molybdenum

Overview of Molybdenum

Atomic Number: 42Group: 6Period: 5Series: change Metals

Molybdenum"s surname in various other Languages

Latin: MolybdaenumCzech: MolybdenCroatian: MolibdenFrench: MolybdéneGerman: Molybdän - rItalian: MolibdenoNorwegian: MolybdenPortuguese: MolibdênioRussian: МолибденSpanish: MolibdenoSwedish: MolybdenAtomic framework of MolybdenumAtomic Radius: 2.01ÅAtomic Volume: 9.4cm3/molCovalent Radius: 1.3ÅCross Section (Thermal ghost Capture) σa/barns: 2.6Crystal Structure: Cubic human body centered
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Electron Configuration:1s2 2s2p6 3s2p6d10 4s2p6d5 5s1Electrons per power Level: 2,8,18,13,1Shell Model
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Ionic Radius:
0.65ÅFilling Orbital: 4d5Number of electrons (with no charge): 42Number of neutrons (most common/stable nuclide): 54Number the Protons: 42Oxidation States: 6,5,4,3,2Valence Electrons: 4d5 5s1Electron period Model
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Chemical properties of Molybdenum

Electrochemical Equivalent:
0.8949g/amp-hrElectron work Function: 4.6eVElectronegativity: 2.16 (Pauling); 1.3 (Allrod Rochow)Heat the Fusion: 32kJ/molIncompatibilities:Strong oxidizersIonization PotentialFirst: 7.099Second: 16.461Third: 27.16Valence Electron Potential (-eV): 88.6

Physical nature of Molybdenum

Atomic mass Average: 95.94Boiling Point: 4885K 4612°C 8334°FCoefficient that lineal thermal expansion/K-1: 5.43E-6ConductivityElectrical: 0.187 106/cm ΩThermal: 1.38 W/cmKDensity: 10.22g/cc
300KDescription: difficult silvery-white shift metal.Elastic Modulus:Bulk: 261.2/GPaRigidity: 125.6/GPaYoungs: 324.8/GPaEnthalpy of Atomization: 653 kJ/mole
25°CEnthalpy that Fusion: 27.61 kJ/moleEnthalpy that Vaporization: 594.1 kJ/moleFlammablity Class: Combusrible solid in flour formFreezing Point: see melting pointHardness ScaleBrinell: 1500 MN m-2Mohs: 5.5Vickers: 1530 MN m-2Heat that Vaporization: 598kJ/molMelting Point: 2890K 2617°C 4743°FMolar Volume: 9.41 cm3/moleOptical Reflectivity: 58%Physical State (at 20°C & 1atm): SolidSpecific Heat: 0.25J/gKVapor Pressure = 3.47Pa
2617°C

Regulatory / Health

CAS Number7439-98-7RTECS: QA4680000OSHA permissible Exposure limit (PEL)TWA: 15 mg/m3OSHA PEL Vacated 1989TWA: 10 mg/m3NIOSH recommended Exposure limit (REL)IDLH: 5000 mg/m3 Routes of Exposure: Inhalation; Ingestion; Skin and/or eye contactTarget Organs: Eyes, respiratory tract system, liver, kidneysLevels In Humans:Note: this data represents naturally occuring level of facets in the typical human, it DOES NOT stand for recommended daily allowances.Blood/mg dm-3: 0.001Bone/p.p.m: Liver/p.p.m: 1.3-5.8Muscle/p.p.m: 0.018Daily diet Intake: 0.05-0.35 mgTotal mass In Avg. 70kg human: 5 mg

Who / where / once / How

Discoverer: Carl Wilhelm ScheeleP.J. HjelmDiscovery Location: Uppsala SwedenDiscovery Year: 1781Name Origin:Greek: molubdos (lead).Abundance the Molybdenum:Earth"s Crust/p.p.m.: 1.5Seawater/p.p.m.: 0.01Atmosphere/p.p.m.: N/ASun (Relative to H=1E12): 145Sources that Molybdenum:Found in the mineral molybdenite (MoS2) and also wulfenite (MoO4Pb) additionally produced together a by-product the copper production. Annual world large production is around 80,000 tons. Major mining areas are USA, Australia, Italy, Norway, Bolivia.Uses the Molybdenum:Used in steel, aircraft, missiles, filaments in electrical heaters, lubricants and also protective coatings in boiler plates.Additional Notes:

Molybdenum Menu

Molybdenum web page OneOverview of MolybdenumMolybdenum"s surname in various other LanguagesAtomic structure of MolybdenumChemical properties of MolybdenumPhysical nature of MolybdenumRegulatory / HealthWho/When/Where/HowMolybdenum page TwoNuclides / IsotopesPotential parental NuclidesMolybdenum web page ThreeCommon chemical Compounds that Molybdenum

References

A list of reference sources provided to compile the data noted on our periodic table of elements can be found on the key periodic table page.

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