lead. 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.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.
Revillo, South Dakota. (Redirected from Revillo, SD) Revillo is a town in Grant County, South Dakota, United States. The population was 119 at the 2010 census. The name of the town most likely was derived from a backwards spelling of the proper name Olliver.
DISTRICT 4 COMMISSIONER Greg Abercrombie Serving the County since 2008 Commissioner Abercrombieâs district covers several small communities in the eastern end of the county, including Laceyâs Spring, Union Hill, Cotaco, Brewer, Ryan and Valhermoso Springs.