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.
Interesting facts: Georgia, the largest state east of the Mississippi has more counties (159) than any other state east of the Mississippi. Lincoln County is named for Benjamin Lincoln, a Revolutionary War hero.Ware County (Waycross) is the largest county in land area (906.6 square miles) while Clarke County (Athens) is the smallest county in land size (121.3 square miles). Fulton County has the most people (816,006 according to the 2000 Census).incoln County is named for Benjamin Lincoln, a Revolutionary War hero. Ware County (Waycross) is the largest county in land area (906.6 square miles) while Clarke County (Athens) is the smallest county in land size (121.3 square miles).