Element gold - Au
Comprehensive data on the chemical facet Gold is provided on this page; consisting of scores that properties, aspect names in countless languages, most known nuclides that Gold. Usual chemical compounds space also noted for plenty of elements. In addition technical state are connected to your definitions and also the menu has links to related articles that room a good aid in one"s studies.
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Gold MenuGold page OneOverview of GoldGold"s surname in other LanguagesAtomic framework of GoldChemical nature of GoldPhysical properties of GoldRegulatory / HealthWho/When/Where/HowGold page TwoNuclides / IsotopesPotential parental Nuclides
Overview that GoldAtomic Number: 79Group: 11Period: 6Series: transition Metals
Gold"s surname in various other LanguagesLatin: AurumCzech: ZlatoCroatian: ZlatoFrench: OrGerman: gold - sItalian: OroNorwegian: GullPortuguese: OuroRussian: ЗолотоSpanish: OroSwedish: GuldAtomic framework of GoldAtomic Radius: 1.79ÅAtomic Volume: 10.2cm3/molCovalent Radius: 1.34ÅCross Section (Thermal ghost Capture)σa/barns: 98.7Crystal Structure: Cubic confront centered
Chemical nature of GoldElectrochemical Equivalent: 2.4496g/amp-hrElectron occupational Function: 5.1eVElectronegativity: 2.54 (Pauling); 1.42 (Allrod Rochow)Heat of Fusion: 12.55kJ/molIncompatibilities:Ionization PotentialFirst: 9.225Second: 20.521Valence Electron Potential (-eV): 51
Physical nature of GoldAtomic massive Average: 196.9665Boiling Point: 3080K 2807°C 5085°FCoefficient of lineal heat expansion/K-1: 14.16E-6ConductivityElectrical: 0.452 106/cm ΩThermal: 3.17 W/cmKDensity: 19.32g/cc
300KDescription:Soft glowing yellow change metal.Elastic Modulus:Bulk: 171/GPaRigidity: 26/GPaYoungs: 78.5/GPaEnthalpy that Atomization: 364 kJ/mole
25°CEnthalpy of Fusion: 12.55 kJ/moleEnthalpy the Vaporization: 324.4 kJ/moleFlammablity Class:Freezing Point: see melting pointHardness ScaleBrinell: 2450 MN m-2Mohs: 2.5Vickers: 216 MN m-2Heat of Vaporization: 334.4kJ/molMelting Point: 1337.73K 1064.58°C 1948.24°FMolar Volume: 10.2 cm3/moleOptical Reflectivity: 95%Physical State (at 20°C & 1atm): SolidSpecific Heat: 0.128J/gKVapor Pressure = 0.000237Pa
Regulatory / HealthCAS Number7440-57-5OSHA permit Exposure limit (PEL)No limits collection by OSHAOSHA PEL Vacated 1989No limits collection by OSHANIOSH recommended Exposure border (REL)No limits set by NIOSH Levels In Humans:Note: this data represents naturally occuring level of elements in the usual human, that DOES NOT stand for recommended daily allowances.Blood/mg dm-3: (0.1-4.2)E-4Bone/p.p.m: 0.016Liver/p.p.m: 0.0004Muscle/p.p.m: n/aDaily dietary Intake: n/aTotal mass In Avg. 70kg human: 0.2 mgDiscovery Year: UnknownName Origin:Gold indigenous old English indigenous geolo (yellow) Au indigenous Latin: aurum (gold).Abundance of Gold:Earth"s Crust/p.p.m.: 0.0011Seawater/p.p.m.: 0.00001Atmosphere/p.p.m.: N/ASun (Relative come H=1E12): 5.6Sources of Gold:Found in quartz veins in in extrusive rocks, with copper ore and native metals. About 1,400 loads are created each year human being wide. Major mining locations are southern Africa, USA, Canada and Russia.Uses the Gold:Very malleable. Used in electronics, jewelry dentist crowns and coins. Supposedly around fifty percent of the world"s supply of gold is save on computer in the United says Treasury Department"s gold depository in ft Knox Kentucky, which is thought about to be among the many secure structures in the world.Additional Notes:Gold is poorly absorbed by the body. Gold-based anti-arthritics can cause liver and/or kidney damage.
Gold MenuGold web page OneOverview that GoldGold"s name in other LanguagesAtomic structure of GoldChemical properties of GoldPhysical properties of GoldRegulatory / HealthWho/When/Where/HowGold page TwoNuclides / IsotopesPotential parental Nuclides
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