Transition metal

Gold

Gold (Au) has atomic number 79. PubChem classifies it as transition metal.

Atomic number

79

Symbol

Au

Atomic weight (source value)

196.96657

Electron configuration

[Xe]6s1 4f14 5d10

Standard state

Solid

Electronegativity (Pauling)

2.54

Melting point (K)

1337.33

Boiling point (K)

3129

Density (g/cm³)

19.282

Oxidation states

+3, +1

Understanding this entry

Atomic number is the number of protons in the nucleus. Properties are reference values and may depend on conditions and measurement conventions. An atomic weight is not the mass of every isotope. For elements without a standard atomic weight, a source may report an isotope mass number. Blank source values are shown as unavailable rather than estimated.

Further reading and reference: NIH PubChem source dataset ↗. Values and educational summaries are not a substitute for specialised advice.