Gold (Au)
Precious Metals | Atomic Number: 79
Basic Properties
Au
79
196.96657 g/mol
| Element Category | Precious Metals |
|---|---|
| Atomic Number | 79 |
| Atomic Weight | 196.96657 g/mol |
Crystal Structure Visualization
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Description
Precious metal prized for its beauty, malleability, and resistance to corrosion
| Density | 19.3 g/cm³ |
|---|
| Tensile Strength | 120-220 MPa |
|---|---|
| Hardness | 2.5-3 Mohs |
| Melting Point | 1064°C |
|---|---|
| Boiling Point | 2856°C |
| No electrical properties data available |
| Corrosion Resistance | Excellent (virtually tarnish-free) |
|---|
Applications
Used in jewelry, electronics, and as an investment.
Production Methods
Extracted from gold ore via cyanidation.
History
Used since prehistoric times as a symbol of wealth.