Gold (Au) — Element 79: Properties & Data | Aladdin Scientific
Gold(Au) — Element 79
Gold (Au) is a transition metal with atomic number 79 and atomic mass 196.967. It has melting point 1337.33 K (1064 °C), boiling point 3129 K (2856 °C), density 19.282 g/cm³. It sits in group 11 and period 6 of the periodic table and has been known since antiquity.
Key facts
| Atomic mass | 196.9666 u |
|---|---|
| Electron configuration | [Xe]6s1 4f14 5d10 |
| Oxidation states | +3, +1 |
| Electronegativity (Pauling) | 2.54 |
| Atomic radius (van der Waals) | 166 pm |
| Ionization energy | 9.226 eV |
| Electron affinity | 2.309 eV |
| Melting point | 1337.33 K |
| Boiling point | 3129 K |
| Density | 19.282 g/cm³ |
| Standard state | Solid |
| Year discovered | Ancient |
Frequently asked questions
What is the electron configuration of gold?
The ground-state electron configuration of gold is [Xe]6s1 4f14 5d10.
What group and period is gold in?
Gold (Au) is in group 11 and period 6 of the periodic table, classified as a transition metal.
What is the melting point of gold?
Gold melts at 1337.33 K (1064 °C).
What is the standard state of gold?
Gold is a solid at standard temperature and pressure.
Related elements
About this data: property values compiled from IUPAC Standard Atomic Weights (2021), the NIST Atomic Spectra Database, and PubChem. Curated by the Aladdin Scientific technical team. Last reviewed: .