- chlorine group
- The halogens.
Medical dictionary. 2011.
chlorine group
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Chlorine — This article is about the chemical element. For the bleach, see Sodium hypochlorite. For the upcoming film, see Chlorine (film). sulfur ← chlorine → argon F ↑ Cl ↓ Br … Wikipedia
chlorine — chlorinous, adj. /klawr een, in, klohr /, n. a halogen element, a heavy, greenish yellow, incombustible, water soluble, poisonous gas that is highly irritating to the respiratory organs, obtained chiefly by electrolysis of sodium chloride brine:… … Universalium
chlorine — [ klɔ:ri:n] noun the chemical element of atomic number 17, a toxic, irritant, pale green gas of the halogen group. (Symbol: Cl) Origin C19: from Gk khlōros green + ine4 … English new terms dictionary
chlorine — n. Chem. a poisonous greenish yellow gaseous element of the halogen group occurring naturally in salt, sea water, rock salt, etc., and used for purifying water, bleaching, and the manufacture of many organic chemicals. Usage: Symb.: Cl. Etymology … Useful english dictionary
Pool chlorine hypothesis — The pool chlorine hypothesis is the hypothesis that long term attendance at indoor chlorinated swimming pools by children up to the age of about 6 7 years is a major factor in the rise of asthma in rich countries since the late twentieth century … Wikipedia
platinum group — ▪ chemical element group Introduction six metals, in order of increasing atomic weight, ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Ir), and … Universalium
boron group element — ▪ chemical elements Introduction any of the five chemical elements constituting Group 13 (IIIa) of the periodic (periodic law) table (see Figure >). The elements are boron (B), aluminum (Al), gallium (Ga), indium (In), an … Universalium
Platinum group — The platinum group (alternatively, the platinum group metals or platinum metals) is a collective name sometimes used for six metallic elements clustered together in the periodic table. These elements are all transition metals, lying in the d… … Wikipedia
nitrogen group element — ▪ chemical elements Introduction any of the chemical elements that constitute Group Va of the periodic table (see Figure >). The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The elements share… … Universalium
Oceana (non-profit group) — Oceana Founded 2001 Location Washington, D.C. Key people Andrew Sharpless, CEO James Simon, Executive Vice President and General Counsel Michael Hirshfield, Senior Vice President, North America and Chief Scientist Keith Addis, Board Chairman … Wikipedia
