No, pure gold does not rust.
Why Gold Doesn't Rust
Rust is a form of corrosion that occurs when iron reacts with oxygen and water. Gold, however, is a noble metal, meaning it is highly resistant to corrosion. Gold's atomic structure makes it incredibly stable and unreactive, preventing it from oxidizing or reacting with other elements in the environment.
Gold's Resistance to Other Forms of Degradation
While gold doesn't rust, it can still be affected by other forms of degradation:
- Abrasion: Gold can be scratched or worn down by friction.
- Chemical Attack: Strong acids like aqua regia (a mixture of nitric acid and hydrochloric acid) can dissolve gold.
- Pollution: Exposure to air pollutants can tarnish gold, giving it a dull appearance.
Gold's Durability and Value
Gold's resistance to corrosion and other forms of degradation contributes to its value and durability. This is why gold is often used in jewelry, coins, and other valuable items.
