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magnesium

(Encyclopedia) magnesiummagnesiummăgnēˈzēəm, –zhəm [key], metallic chemical element; symbol Mg; at. no. 12; at. wt. 24.3050; m.p. about 648.8℃; b.p. about 1,090℃; sp. gr. 1.738 at 20℃; valence +2. In…

Iceland Department of State Background

U.S. Department of State Background Note Iceland Index: Geography People History Government Political Conditions Defense Foreign Relations U.S.-Icelandic Relations GEOGRAPHYIceland is a…

Porifera

(Encyclopedia) CE5 A. Canal systems of the three morphological types of sponges B. Internal anatomy of an asconoid sponge, representative of the phylum Porifera PoriferaPoriferapōrĭfˈərə [key] […

The Largest States in the U.S. by Area

The United States of America is a country of immense geographical diversity, with a landscape that spans from snow-capped mountains to sun-kissed beaches, arid deserts to lush forests. The country's…

California

  California State Information Capital: Sacramento Official Name: State of California Organized as a territory: August 14, 1848 Entered Union (rank): California entered the Union as the 31st…

Chemical Elements Table

See the interactive periodic table.ElementSym-bolAtomicno.Atomicwt.SpecificgravityMeltingpoint °CBoilingpoint °CNo. ofisotopes1DiscovererYearActinium Ac 89 227210.0731051319811 Debierne/Giesel1899…

iron

(Encyclopedia) iron, metallic chemical element; symbol Fe [Lat. ferrum]; at. no. 26; at. wt. 55.845; m.p. about 1,535℃; b.p. about 2,750℃; sp. gr. 7.87 at 20℃; valence +2, +3, +4, or +6. Iron is…

October Current Events 2022: US News

Top of Page World News | Disaster News | Science & Technology News The world is a very busy place, and it's hard to stay on top of everything. Infoplease has got you covered. Here are the US…

New York

New York State Information Official Name: State of New York Capital: Albany  Organized as a territory: 1624 Entered Union (rank): July 26, 1788 (11th state) Present constitution adopted: 1777…