Chlorine

Chlorine         Chlorine is (at room temperature) a greenish-yellow gas that can be readily liquefied at 5170 Tarr or 6.8 atmospheres, at 20 C (68 F), and has a very disagreeable odor. It's Element Symbol is Cl, atomic number is 17, and atomic mass is 35.453. Chlorine's melting point is -101 C or 149.8 F. The boiling point is -34.05 C or -29.29 F, at one atmosphere pressure. Chlorine is a member of the halogen group. Chlorine was discovered by Swedish scientist Karl …

…hydrogen chloride (a colorless, corrosive, nonflammable gas with a penetrating, suffocating odor.) . Bibliography · Microsoft ® Encarta. Copyright © 1994 Microsoft Corporation. Copyright © 1994 Funk & Wagnalls Corporation. · Asimov, Isaac, Building Blocks of the Universe, rev. ed. (1974); Downs, A. J., The Chemistry of Chlorine, Bromine, Iodine and Astatine (1975); Hamilton, E. I., The Chemical Elements and Man (1978); Nechamkin, Howard, Chemistry of the Elements (1968); Ruben, Samuel, Handbook of the Elements, 2d ed. (1967; repr. 1985); Trifonov, D. N., Chemical Elements: How They Were Discovered (1985).