Element	General	Physical properties Phase solid	Atomic properties	Miscellaneous
GOLD	Name, Symbol, Number gold, Au, 79 Chemical series transition metals Group, Period, Block 11, 6, d Appearance metallic yellow Atomic mass 196.966569(4) g/mol Electron configuration [Xe] 4f14 5d10 6s1 Electrons per shell 2, 8, 18, 32, 18, 1	Density (near r.t.) 19.3 g/cm³ Liquid density at m.p. 17.31 g/cm³ Melting point 1337.33 K (1064.18 °C, 1947.52 °F) Boiling point 3129 K (2856 °C, 5173 °F) Heat of fusion 12.55 kJ/mol Heat of vaporization 324 kJ/mol Heat capacity (25 °C) 25.418 J/(mol·K) Vapor pressure P/Pa 1 10 100 1 k 10 k 100 k at T/K 1646 1814 2021 2281 2620 3078	Crystal structure cubic face centered Oxidation states 3, 1 (amphoteric oxide) Electronegativity 2.54 (Pauling scale) Ionization energies 1st: 890.1 kJ/mol 2nd: 1980 kJ/mol Atomic radius 135 pm Atomic radius (calc.) 174 pm Covalent radius 144 pm Van der Waals radius 166 pm	Magnetic ordering no data Electrical resistivity (20 °C) 22.14 nO·m Thermal conductivity (300 K) 318 W/(m·K) Thermal expansion (25 °C) 14.2 µm/(m·K) Speed of sound (thin rod) (r.t.) (hard-drawn) 2030 m/s Young's modulus 78 GPa Shear modulus 27 GPa Bulk modulus 220 GPa Poisson ratio 0.44 Mohs hardness 2.5 Vickers hardness 216 MPa Brinell hardness 2450 MPa CAS registry number 7440-57-5