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The chromium [7] in stainless steel forms a passive oxide film on the surface of the metal, resulting in corrosion resistance. [8] It is suggested that allicin and the other sulfur compounds (including sulfuric acid) react with the chromium oxide layer, some possibly being adsorbed onto it. Washing the stainless steel soap in water would remove ...
A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. [8] Silver 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 .
A silvery-colored metal, tin is soft enough to be cut with little force, [10] and a bar of tin can be bent by hand with little effort. When bent, the so-called "tin cry" can be heard as a result of twinning in tin crystals. [11] Tin is a post-transition metal in group 14 of the periodic table of elements.
A table listing the 17 rare-earth elements, their atomic number and symbol, the etymology of their names, and their main uses (see also Applications of lanthanides) is provided here. Some of the rare-earth elements are named after the scientists who discovered them, or elucidated their elemental properties, and some after the geographical ...
With itself, lead can build metal–metal bonds of an order up to three. [90] With carbon, lead forms organolead compounds similar to, but generally less stable than, typical organic compounds [91] (due to the Pb–C bond being rather weak). [64] This makes the organometallic chemistry of lead far less wide-ranging than that of tin. [92]
Derveni krater, bronze, 350 BC, height: 90.5 cm (35 1 ⁄ 2 in.), Inv. B1, Archaeological Museum of Thessaloniki, after cleaning and conservation. Conservation and restoration of metals is the activity devoted to the protection and preservation of historical (religious, artistic, technical and ethnographic) and archaeological objects made partly or entirely of metal.
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