Encyclopediauraniumuranium (yOOrā'nēum) [key], radioactive metallic chemical element; symbol U; at. no. 92; at. wt. 238.0289; m.p. 1,132°C; b.p. 3,818°C; sp. gr. 19.1 at 25°C; valence +3, +4, +5, or +6. Sections in this article: The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved. More on uranium from Fact Monster:
- Uranium City - Uranium City Uranium City, town, NW Sask., Canada, on Lake Athabasca near the Northwest Territories ...
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- Periodic Table of the Elements: Uranium - Periodic Table of the Elements: Uranium Atomic Number: 92 Atomic Symbol: U Uranium Atomic Weight: ...
- uranium: Discovery and Uses - Discovery and Uses The discovery of uranium is commonly credited to Martin H. Klaproth, who in ...
- uranium: Natural Occurrence and Processing - Natural Occurrence and Processing Uranium is widely distributed in its ores but is not found ...
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