Columbia Encyclopedia

Search results

500 results found

complex ion

(Encyclopedia)complex ion, charged molecular aggregate (see ion), consisting of a metallic atom or ion to which is attached one or more electron-donating molecules. In some complex ions, such as sulfate, SO4−2, t...

zinc

(Encyclopedia)zinc, metallic chemical element; symbol Zn; at. no. 30; at. wt. 65.38; m.p. 419.58℃; b.p. 907℃; sp. gr. 7.133 at 25℃; valence +2. Zinc is a lustrous bluish-white metal. It is found in Group 12 o...

Lüdenscheid

(Encyclopedia)Lüdenscheid lüˈdənshīt [key], city (1994 pop. 80,280), North Rhine–Westphalia, W Germany. It is an industrial center; manufactures include aluminum, metal products, plastics, and synthetics. L�...

Lynbrook

(Encyclopedia)Lynbrook, village (1990 pop. 19,208), Nassau co., SE N.Y.; inc. 1911. It is a suburb of New York City on the south shore of Long Island. There is sheet-metal and furniture manufacture. Old Church date...

Midwest City

(Encyclopedia)Midwest City, city (1990 pop. 52,267), Oklahoma co., central Okla., a residential suburb of Oklahoma City; founded 1942 with the activation of adjoining Tinker Air Force Base, a logistics center. The ...

Milwaukie

(Encyclopedia)Milwaukie, city (1990 pop. 18,692), Clackamas and Multnomah counties, NW Oreg., on the Willamette River; inc. 1903. The city is a distribution center for farms and orchards of the Willamette valley an...

National City

(Encyclopedia)National City, city (1990 pop. 54,249), San Diego co., S Calif., on San Diego Bay; inc. 1887. Structural metal is fabricated, and there is shipbuilding and the manufacture of recycling machinery, plas...

Rancho Cordova

(Encyclopedia)Rancho Cordova rănˈchō kôrdōˈvə [key], uninc. residential city (1990 pop. 48,731), Sacramento co., N Calif. A suburb of Sacramento, it experienced rapid growth in the late 20th cent. Nursery pr...

Cheongju

(Encyclopedia)Cheongju or Chongju chôngˈjo͞oˈ [key], city, capital of North Chungcheong prov., W central South Korea. It ...

Gladbeck

(Encyclopedia)Gladbeck glätˈbĕk [key], city, North Rhine–Westphalia, W Germany, an industrial center o...