Period 3 element phosphorus originates from oxidation of the white (but not red) phosphorus and should be called chemiluminescence. It is also the lightest element to easily produce stable exceptions to the octet rule. The vast majority of phosphorus compounds are consumed as fertilizers. Other applications include the role of organophosphorus compounds in detergents, pesticides and nerve agents, and matches. "Sulfur" (symbol S) is an abundant, multivalentnon-metal. Under normal conditions, sulfur atoms form cyclic octatomic molecules with chemical formula S. Elemental sulfur is a bright yellow crystalline solid when at room temperature. Chemically, sulfur can react as either an oxidant or reducing agent.
Black Element Software Black Element Software Black Element Software Co., LTD is a Czech video game developer based in Prague, Czech Republic. Prior to their acquisition by Bohemia Interactive Studio in 2010, they developed computer and console games directly. Black Element Software was founded in 2000 by the members of Insanity, known for their games Testament and Testament II. They released their first game, "", on 1 October 2004. In 2005, they joined with Bohemia Interactive Studio and Altar Games to form IDEA Games, which functioned as a publisher and consultant for several independent developers. On 30 September 2010, Black Element Software was