Pb-206 and Pb-207 can both be used to produce the medical radioisotopes Bi-205 and Bi-206. Substance Search. Lead is soft and malleable, and also has a relatively low melting point.When freshly cut, lead is silvery with a hint of blue; it tarnishes to a dull gray color when exposed to air. It is a very poisonous and heavy metal Properties Physical properties.
Lead is an Anglo-Saxon word for the metal that has been used and known about since ancient times. Origin of name: from the Anglo-Saxon word "lead; Latin, plumbum" (the origin of the symbol Pb is the Latin word "plumbum" meaning "liquid silver". Some is also mined in Mexico and West Germany. Several Lead isotopes have also been used as target in the production of super heavy elements.This gives lead usually contaminated with metals such as antimony, arsenic, copper, gold, silver, tin, and zinc.
Lead is a considered a basic metal or post-transition metal. For more effects on freshwater ecosystem take a look at lead in freshwater. Its atomic number is 82, atomic mass is 207.2 and has a melting point of 327.8°C.
We do not know who discovered it.The metal is highly ductile and malleable.Lead and its compounds are poisonous.Lead’s chemical symbol is Pb, which comes from its Latin name.
Natural lead consists of a mixture of 4 stable isotopes, although radioisotopes also exist.
The image below shows shiny, untarnished lead balls.
The Romans also used lead for plumbing.It tarnishes slowly in moist air to form a dull gray coating.Historically, lead was used in plumbing.Nasa: A cargo tag made of lead was unearthed during excavation of the original colony at Jamestown, Virginia.
Lead is very malleable, ductile, and dense and is a poor conductor of electricity. The chemical name is lead. It is believed to have made the trip from England in 1611.Its ores are widely distributed and it has a low melting point so it is easily smelted.Lead oxide is also used in the manufacture of fine crystal glass. Lead, a soft, silvery white or grayish metal in Group 14 (IVa) of the periodic table.
Lead (pronounce: "/'lɛd/") is a chemical element. To cite this page in an academic document, please use the following MLA compliant citation:The metal is used as shielding from radiation, e.g. Native lead was probably first discovered in the Långban District in the late nineteenth century and was named for the chemical element.
Lead isotopes are the end products of each of the three series of naturally occurring radioactive elements.Native lead is rare in nature. Lead: history Lead was discovered by known since ancient times in unknown at not known.
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