Stable isotope Gold (Au)

 
Isotope Z(p) N(n) Atomic Mass Natural Abundance Nuclear Spin
Au-197 79 118 196.966551 100.00% 3/2+

Properties of Gold

Name Gold
Symbol Au
Atomic number 79
Atomic weight 196.9665
Standard state Solid at 298 ºK
CAS Registry ID 7440-57-5
Group in periodic table 11
Group name Coinage metal
Period in periodic table 6
Block in periodic table d-block
Color Gold
Classification Metallic
Melting point 1064 °C
Boiling point 3080 °C
Vaporization point 2856 ºC
Thermal conductivity 318 W/(m·K) at 298.2 °K
Electrical resistivity 2.214 µΩ·cm at 20 °C
Electronegativity 2.4
Specific heat 0.13 kJ/kg K
Heat of vaporization 81.8 kJ·mol-1 at 3080 °C
Heat of fusion 3.03 kJ·mol-1
Density of liquid 17.31 g/cm3 at 1064 °C
Density of solid 19.3 g/cm3
Electron configuration [Xe]4f145d106s1 
Oxidation states +1, +3; +3 is common and more stable