not known. 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. Calculate the molecular weight of Lead or molecular weight Pb.Also see the full list of chemical elements and atomic weights.rom the Anglo-Saxon word lead; Latin, plumbum (the origin of the symbol Pb is the Latin word plumbum meaning liquid silver. Calculate the molecular weight of Lead or molecular weight Pb.
Homefacts City Report. Rex is located in Clayton County, GA. The population is NR. There are 3 public schools in Rex with an average Homefacts rating of B. The total crime rate for Rex is moderate, and there are 31 registered sex offenders residing in the city. Unemployment in Rex is very high and the median home sales price is $80,000.
Fulton County is a county located in the north central portion of the U.S. state of Georgia. As of 2015 estimates the population was 1,010,562 making it the most populous county in Georgia and the only county to exceed 1 million inhabitants. Its county seat is Atlanta, the state capital since 1868. Ninety percent of the City of Atlanta is within Fulton County (the other 10% lies within DeKalb County). Fulton County is the principal county of the Atlanta metropolitan area. Fulton County is included in the Atlanta-Sandy Springs-Roswell, GA Metropolitan Statistical Area.