gold
Sign in to saveGold is a chemical element; its chemical symbol is Au (from Latin ) and atomic number 79. In its pure form, it is a bright-metallic-yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal, a group 11 element, and one of the noble metals. It is one of the least reactive chemical elements, being the second lowest in the reactivity series, with only platinum ranked as less reactive. Gold is solid under standard conditions.
AI overview
Gold is a bright yellow metal with the chemical symbol Au that is soft, bendable, and very unreactive compared to other elements. It matters because these properties—particularly its resistance to corrosion and its malleability—make it useful for applications where durability and workability are important.
AI-generated from the Wikipedia summary — may contain errors.
Chemical data
- Formula
- Au
- Molecular weight
- 196.96657 g/mol
- IUPAC name
- gold
via PubChem
Wikidata facts
- Instance of
- precious metal
- Subclass of
- noble metal
- Part of
- group 11
- Mass
- +196.96657
- Image
- Gold-crystals.jpg
Show 9 more facts
- P462
- gold
Article
32 sectionsContents
- Etymology
- Characteristics
- Color
- Isotopes
- Synthesis
- Chemistry
- Rare oxidation states
- Origin
- Gold and platinum production in the universe
- Asteroid origin theories
- Mantle return theories
- Occurrence
- Seawater
- History
- Production
- Mining and prospecting
- Extraction and refining
- Recycling
- Pollution
- Monetary use
- Price
- Other applications
- Jewelry
- Electronics
- Medicine
- Cuisine
- Miscellanea
- Toxicity
- See also
- References
- Further reading
- External links
Gold is a chemical element; its chemical symbol is Au (from Latin ) and atomic number 79. In its pure form, it is a bright-metallic-yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal, a group 11 element, and one of the noble metals. It is one of the least reactive chemical elements, being the second lowest in the reactivity series, with only platinum ranked as less reactive. Gold is solid under standard conditions.
Gold often occurs as the free element (native state), as nuggets or grains, in rocks, veins, and alluvial deposits. It occurs in a solid solution series with the native element silver (as in electrum), naturally alloyed with other metals such as copper, platinum, and palladium, as well as mineral inclusions such as within pyrite. Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides).