Period 3 element in 1810, who named it chlorine, from the Greek word χλωρος (chlōros), meaning "green-yellow." Chlorine is a component of various compounds, including table salt. It is the second most abundant halogen and 21st most abundant chemical element in Earth's crust. The great oxidizing potential of chlorine led it to its bleaching and disinfectant uses, as well as uses of an essential reagent in the chemical industry. As a common disinfectant, chlorine compounds are used in swimming pools to keep them clean and sanitary. In the upper atmosphere, chlorine-containing molecules such as chlorofluorocarbons have been implicated in ozone depletion. "Argon" (symbol
Anauroch: The Empire of Shade Anauroch: The Empire of Shade Anauroch: The Empire of Shade is an adventure module for the 3.5 edition of the "Dungeons & Dragons" fantasy role-playing game. "Anauroch: The Empire of Shade" takes place in the Forgotten Realms setting, where malign forces conspire to undo the Weave and replace it with the Shadow Weave, causing the Great Desert of Anauroch to change. The player characters must intervene or else all of Faerun will soon feel the dark might of the greatest magical empire since Netheril. "Anauroch: The Empire of Shade" was published in November 2007, and was written by Greg A.