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888poker pure silver coin

, derived from the Greek ὰργὀς: "shiny" or "white") and atomic number 47.A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal.The metal is found in the Earth's crust in the pure, free elemental form ("native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite.Most silver is produced as a byproduct of copper, gold, lead, and zinc refining. Silver metal is used in many bullion coins, sometimes alongside gold: while it is more abundant than gold, it is much less abundant as a native metal.Its purity is typically measured on a per-mille basis; a 94%-pure alloy is described as "0.940 fine".As one of the seven metals of antiquity, silver has had an enduring role in most human cultures.Silver is used in numerous applications other than currency, such as solar panels, water filtration, jewellery, ornaments, high-value tableware and utensils (hence the term silverware), and as an investment medium (coins and bullion) Silver is used industrially in electrical contacts and conductors, in specialized mirrors, window coatings, and in catalysis of chemical reactions.Silver compounds are used in photographic film and X-rays.Dilute silver nitrate solutions and other silver compounds are used as disinfectants and microbiocides (oligodynamic effect), added to bandages and wound-dressings, catheters, and other medical instruments.Silver is an extremely soft, ductile and malleable transition metal, though it is slightly less malleable than gold.Silver crystallizes in a face-centered cubic lattice with bulk coordination number 12, where only the single 5s electron is delocalized, similarly to copper and gold.Unlike metals with incomplete d-shells, metallic bonds in silver are lacking a covalent character and are relatively weak.This observation explains the low hardness and high ductility of single crystals of silver.

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888poker pure silver coin