lead (Pb), n a common soft, blue-gray, metallic element. Its atomic number is 82, and its atomic weight is 207. In its metallic form, it is used as a protective shielding against radiographs.ead. A metallic element, atomic no. 82, atomic wt. 207.2; occurs in nature as an oxide or one of the salts, but chiefly as the sulfide, or galena; 210 Pb (half-life equal to 22.6 years) has been used in the treatment of certain eye conditions.
Republic, MO. Sponsored Topics. Republic is a city in Christian and Greene counties in the U.S. state of Missouri. The population was 8,438 at the 2000 census, and 14,300 as of 2009. It is part of the Springfield, Missouri, Metropolitan Statistical Area.
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