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.
Hospital in Arles ""Souvenirs de la maison des morts" ("Memories of the House of the Dead"). Vincent described the painting to his sister Wil, "In the foreground a big black stove around which some grey and black forms of patients and then behind the very long ward paved in red with the two rows of white beds, the partitions white, but a lilac- or green-white, and the windows with pink curtains, with green curtains, and in the background two figures of nuns in black and white. The ceiling is violet with large beams." Debra Mancoff, author of "Van Gogh's Flowers," comments, "In his