List of chemical symbols. Most chemical elements are represented symbolically by two letters, generally the first two in their name. In some cases, the first letter together with some other letter from their name was used, particularly when their first two letters had already been allocated to another element.
Patterson Township, Beaver County, Pennsylvania. Patterson Township is a township in Beaver County, Pennsylvania, United States. The population was 3,029 at the 2010 census.
Adams Township is a township in Snyder County, Pennsylvania, United States. The population was 852 at the 2000 census. Per the US Census Bureau, by 2010 the population had grown to 907 people.