Negara

Ag ( Perak )

Keterangan

       Silver is stable to water and oxygen but is attacked by sulfur compounds in air to form a black sulfide layer. It reacts with sulfuric and nitric acids. It is a little harder than gold and is extremely ductile and malleable. Pure silver has the highest electrical and thermal conductivity of all metals, and has the lowest contact resistance.

Nama lain (trademark, branding etc.)

Argentum, Stříbro, Srebro, Argent, Silber - s, Argento, Sølv, Prata, Серебро, Plata, Silver

Spesifikasi Produk

Overview of Silver
Atomic Number 47
Group 11
Period: 5 5
Series Transition Metals
Relative Atomic Mass (12C=12.000)  107.87
Boiling Point:  2436K 2163°C 3925°F
Melting Point:  1234K 961°C 1762°F
Density/kg m-3  10500 (293K)
Ground State Electron Configuration  [Kr]4d105s1
Electron Affinity(M-M-)/kJ mol-1  -125.7
Discoverer:  Known to ancient civilization
Discovery Location:  Unknown
Discovery Year:  Unknown
Name Origin: Latin argentum (silver). Silver from Anglo-Saxon seolfor for silver.

Aplikasi

       Sterling silver contains 92.5% silver, the remainder being copper or some other metal, and is used for jewellery and silverware where appearance is important. About 30% of silver produced is used in the photographic industry, mostly as silver(I) nitrate. Silver is used in dental alloys, solder and brazing alloys, electrical contacts and batteries. Silver paints are used for making printed circuits. The metal is used to make mirrors, as it is the best reflector of visible light known, although it does tarnish with time.

Bahan Baku

Silver is a chemical element with the chemical symbol Ag (Greek: άργυρος árguros, Latin: argentum, both from the Indo-European root *arg- for "grey" or "shining") and atomic number 47. A soft, white, lustrous transition metal, it possesses the highest electrical conductivity of any element and the highest thermal conductivity of any metal. The metal occurs naturally in its pure, free 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 is a chemical element with the chemical symbol Ag (Greek: άργυρος árguros, Latin: argentum, both from the Indo-European root *arg- for "grey" or "shining") and atomic number 47. A soft, white, lustrous transition metal, it possesses the highest electrical conductivity of any element and the highest thermal conductivity of any metal. The metal occurs naturally in its pure, free 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.

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