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.
Missouri City is a city in the U.S. state of Texas, within the HoustonâThe WoodlandsâSugar Land metropolitan area. The city is mostly in Fort Bend County, with a small portion in Harris County. As of the 2010 census, the city had a population of 67,358, up from 52,913 in 2000. The population was estimated at 74,139 in 2015.