›› Physical and chemical properties of Gold

Atomic Number:79
Element Symbol:Au
Element Name:Gold
Atomic Weight:196.96655
Group Number:11
Group Name:Coinage metal
Period Number:6
Ground State Configuration:[Xe] 4f14 5d10 6s
Ground State Level:2S1/2
Standard State:Solid
Bond Length:288.4
Atomic Radius Empirical:135
Atomic Radius Calculated:174
Covalent Radius Empirical:144
Vander Waals Radius:166
Electron Affinity:222.8
First Ionization Energy:890.1
Pauling Electronegativity:2.54
Allred Rochow Electronegativity:1.42
Mulliken Jaffe Electronegativity:1.87
Density Of Solid:19300
Molar Volume:10.21
Velocity Of Sound:1740
Youngs Modulus:78
Rigidity Modulus:27
Bulk Modulus:220
Poissons Ratio:0.44
Mineral Hardness:2.5
Brinell Hardness:2450
Vickers Hardness:216
Electrical Resistivity:2.2
Melting Point:1064.18
Boiling Point:2856
Thermal Conductivity:320
Coefficient Of Linear Expansion:14.2
Enthalpy Of Fusion:12.5
Enthalpy Of Vaporization:330
Enthalpy Of Atmization:368
Most Common Oxidation Numbers:3
Discovered By:Known since ancient times.
Discovered At:not known
Origin Of Name:From the Anglo-Saxon word gold (the origin of the symbol Au is the Latin word aurum meaning gold)

Calculate the molecular weight of Gold or molecular weight Au.

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

››Compounds that contain Gold

Gold Ditelluride  AuTe2
Gold(I) Bromide  AuBr
Gold(III) Bromide  AuBr3
Gold(I) Cyanide  AuCN
Gold(I) Chloride  AuCl
Gold(III) Chloride  AuCl3
Gold(III) Fluoride  AuF3
Gold(V) Fluoride  AuF5
Gold(I) Iodide  AuI
Gold(III) Iodide  AuI3
Gold(III) Hydroxide  Au(OH)3
Gold(II) Selenide  AuSe
Gold(II) Telluride  AuTe
Gold(III) Oxide  Au2O3
Gold(I) Sulfide  Au2S
Gold(III) Sulfide  Au2S3
Gold(III) Selenate  Au2(SeO4)3
Gold(III) Selenide  Au2Se3
Gold(I, III) Chloride  Au4Cl8
Gold(I, III) Fluoride  Au4F8