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molybdenum
(Encyclopedia)molybdenum məlĭbˈdənəm [key] [Gr.,=leadlike], metallic chemical element; symbol Mo; at. no. 42; at. wt. 95.96; m.p. about 2,617℃; b.p. about 4,612℃; sp. gr. 10.22 at 20℃; valence +2, +3, +4...molybdenite
(Encyclopedia)molybdenite məlĭbˈdənīt, mō– [key], a mineral, molybdenum disulfide, MoS2, blue-gray in color, with a metallic luster and greasy feel. It occurs in crystals of the hexagonal system but more co...Periodic Table of the Elements: Molybdenum
(Encyclopedia)Periodic Table of the Elements: Molybdenum ...Mo
(Encyclopedia)Mo, symbol for the element molybdenum. ...Val d'Or
(Encyclopedia)Val d'Or väl dôr [key], town (1991 pop. 23,842), SW Que., Canada, SE of Rouyn-Noranda. It is a mining center. Gold was discovered in the region in 1909; copper, zinc, lead, and molybdenum are also m...rhenium
(Encyclopedia)rhenium rēˈnēəm [key], metallic chemical element; symbol Re; at. no. 75; at. wt. 186.207; m.p. about 3,180℃; b.p. about 5,625℃; sp. gr. 21.02 at 20℃; valence −1, +2, +3, +4, +5, +6, or +7....Ketchikan
(Encyclopedia)Ketchikan kĕˈchĭkănˌ [key], city (1990 pop. 8,263), SE Alaska, a port of entry on Revillagigedo Island in the Alexander Archipelago. A supply point for miners in the gold rush of the 1890s, it ha...Nalchik
(Encyclopedia)Nalchik nälˈchĭk [key], city (1989 pop. 235,000), capital of Kabardino-Balkar Republic, S European Russia, on the northern slope of the Greater Caucasus. A health and tourist resort, it is the gate...Nakhchivan Autonomous Republic
(Encyclopedia)Nakhchivan Autonomous Republic or Naxçivan Autonomous Republic näkˌchĭvänˈ [key], autonomous republic (1990 est. pop. 310,000), 2,124 sq mi (5,501 sq km), an exclave of Azerbaijan, bordered on t...Leadville
(Encyclopedia)Leadville lĕdˈvĭl [key], mining city (1990 pop. 2,629), alt. c.10,200 ft (3,110 m), seat of Lake co., central Colo., near the headwaters of the Arkansas River, in the Rocky Mts.; inc. 1878. Some mi...Browse by Subject
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