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Bergman, Torbern Olof
(Encyclopedia)Bergman, Torbern Olof to͝orˈbərn o͞oˈlôv bĕrˈyəmän [key], 1735–84, Swedish chemist, physicist, and mineralogist. A professor at the Univ. of Uppsala from 1758, he developed a theory of che...Jl
(Encyclopedia)Jl, formerly the suggested symbol for the element joliotium, now called dubnium. ...Ku
(Encyclopedia)Ku, formerly the suggested symbol for the element kurchatovium, now called rutherfordium. ...Cb
(Encyclopedia)Cb, formerly the symbol for the element columbium, now called niobium (Nb). ...actinide series
(Encyclopedia)actinide series, a series of radioactive metallic elements in Group 3 of the periodic table. Members of the series are often called actinides, although actinium (at. no. 89) is not always considered a...barium
(Encyclopedia)barium bârˈēəm [key] [Gr.,=heavy], metallic chemical element; symbol Ba; at. no. 56; at. wt. 137.327; m.p. 725℃; b.p. 1,640℃; sp. gr. 3.5 at 20℃; valence +2. Barium is a soft, silver-white, ...Calvin, Melvin
(Encyclopedia)Calvin, Melvin, 1911–97, American organic chemist and educator, b. St. Paul, Minn., grad. Michigan College of Mining and Technology, 1931, Ph.D. Univ. of Minnesota, 1935. In 1937 he joined the facul...Browse by Subject
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