Silver is a metallic chemical element with the chemical symbol Ag (Greek: άργυρος <árgyros>, Latin: argentum, both from the Indo-European root *arg- for "grey" or "shining") and atomic number 47. A soft, white, lustrous transition metal, it has 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 has long been valued as a precious metal, and is used as an investment, to make ornaments, jewelry, high-value tableware, utensils (hence the term silverware), and currency coins. Today, silver metal is also used in electrical contacts and conductors, in mirrors and in catalysis of chemical reactions. Its compounds are used in photographic film, and dilute silver nitrate solutions and other silver compounds are used as disinfectants and microbiocides (oligodynamic effect). While many medical antimicrobial uses of silver have been supplanted by antibiotics, further research into clinical potential continues.
Read more about Silver: Characteristics, Isotopes, Compounds, Applications, History, Occurrence and Extraction, Price, Human Exposure and Consumption
Famous quotes containing the word silver:
“Or ever the silver cord be loosed, or the golden bowl be broken, or
the pitcher be broken at the fountain, or the wheel broken at the
cistern.
Then shall the dust return to the earth as it was: and the spirit
shall return unto God who gave it.
Vanity of vanities, saith the preacher, all is vanity.”
—Bible: Hebrew Ecclesiastes (l. XII, 6–7)
“the hatchlings wake in the swaying branches,
in the silver baskets,
and love the world.
Is it necessary to say any more?
Have you heard them singing in the wind, above the final fields?
Have you ever been so happy in your life?”
—Mary Oliver (b. 1935)
“A black pall, you know, with a silver cross on it, or R.I.P.—requiescat in pace—you know. That seems to me the most beautiful expression—I like it much better than ‘He is a jolly good fellow,’ which is simply rowdy.”
—Thomas Mann (1875–1955)