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The Pittsburgh market alone—where 7-Eleven is the market leader by store count but third behind Sheetz and GetGo in revenue—7-Eleven currently offers fuel from Exxon, Gulf, Marathon (both legacy 7-Eleven locations and Speedway), BP, and Sunoco (the latter two being from 7-Eleven's acquisitions of their company-owned-and-operated locations ...
118 chemical elements have been identified and named officially by IUPAC.A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z).