79Au196.96657
Gold
Transition Metal
Solid at STP
Period 6Group 11Block DDiscovered Ancient
[Xe]6s1 4f14 5d10
Gold is a chemical element with symbol Au (from Latin:aurum) and atomic number 79. In its purest form, it is a bright, slightly reddish yellow, dense, soft, malleable and ductile metal. Chemically, gold is a transition metal and a group 11 element.
📖 Read more on Wikipedia →Atomic Properties
| Atomic Number | 79 |
| Atomic Mass | 196.96657 u |
| Electron Configuration | [Xe]6s1 4f14 5d10 |
| Oxidation States | +3, +1 |
| Electronegativity | 2.54 (Pauling) |
| Atomic Radius | 166 pm |
| Ionization Energy | 9.226 eV |
| Electron Affinity | 2.309 eV |
| Block | D |
Physical Properties
| Appearance | metallic yellow |
| Standard State | Solid |
| Melting Point | 1337.33 K (1064.2 °C) |
| Boiling Point | 3129 K (2855.8 °C) |
| Density | 19.282 g/cm³ |
| Molar Heat | 25.418 J/(mol·K) |
| CPK Color | #FFD123 |
Classification
| Category | Transition Metal |
| Group Block | Transition metal |
| Period | 6 |
| Group | 11 |
| Block | D |
Discovery
| Year Discovered | Ancient |
| Discovered By | Middle East |
| Electron Shells | 2, 8, 18, 32, 18, 1 |