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promethium

(Encyclopedia)promethium prōmēˈthēəm [key], artificially produced radioactive chemical element; symbol Pm; at. no. 61; mass no. of most stable isotope 145; m.p. 1,042℃; b.p. 3,000℃ (estimated); sp. gr. unk...

Nagaoka

(Encyclopedia)Nagaoka nägäˈôkä [key], city (1990 pop. 185,938), Niigata prefecture, central Honshu, Japan. An industrial center, it has oil refineries, chemical and food processing plants, engineering works, a...

Horlivka

(Encyclopedia)Horlivka hôrˈləfkə [key], Rus. Gorlovka, city (1989 pop. 337,000), E Ukraine, in the Donets Basin. It is a major coal-mining and industrial center, with a major chemical complex. Founded in 1867, ...

Glen Cove

(Encyclopedia)Glen Cove, city (2020 pop. 28,365), Nassau co., SE N.Y., on the north shore of Long Island, at the entrance to Hempstead Harbor; settled 1668, inc. as a...

Ube

(Encyclopedia)Ube o͞oˈbā [key], city (1990 pop. 175,053), Yamaguchi prefecture, SW Honshu, Japan, on the Inland Sea. It has a modern harbor and an important chemical industry. Coal mining, once the city's larges...

Novomoskovsk

(Encyclopedia)Novomoskovsk nôˌvəməskôfskˈ [key], city (1989 pop. 146,000), W central European Russia. An industrial center in the Moscow lignite basin, it has lignite mines and chemical plants. Founded in 193...

Worksop

(Encyclopedia)Worksop wûrkˈsəp, wûrˈ– [key], town (1991 pop. 34,551), Nottinghamshire, central England. Worksop contains a portion of Sherwood Forest. It is a coal-mining center with many industries, includi...

Berezniki

(Encyclopedia)Berezniki bĭryĕznyĭkēˈ [key], city, E European Russia, a port on the Kama River. Situated in an ...

element

(Encyclopedia)CE5 element, in chemistry, a substance that cannot be decomposed into simpler substances by chemical means. A substance such as a compound can be decomposed into its constituent elements by means o...

battery, electric

(Encyclopedia)CE5 Lead storage cell: At the lead-dioxide electrode, electrons from the circuit combine with lead dioxide and sulfuric acid to form lead sulfate and water. At the spongy-lead electrode, lead react...