darmstadtium
darmstadtium artificially produced radioactive chemical element; symbol Ds; at. no. 110; mass number of most stable isotope 271; m.p., b.p., sp. gr., and valence unknown. Situated in Group 10 of the periodic table , it is expected to have properties similar to those of platinum .
In 1994 an international research team led by Peter Armbruster and Sigurd Hofmann at the Institute for Heavy Ion Research at Darmstadt, Germany, bombarded lead-208 atoms with nickel-62 ions. In a two-week experiment, four atoms were unambiguously identified as an isotope of element 110 with mass number 269 and a half-life of 0.17 msec. In a separate experiment, again using the lead-208 target but bombarding it with nickel-64 ions, the same team created nine atoms of an element 110 isotope with mass number 271 and a half-life of 1.4 msec. Six isotopes have been synthesized and unambiguously identified. The Germans suggested the name darmstadtium to honor Darmstadt, where their institute is located. This name was recognized internationally in 2003.
See also synthetic elements ; transactinide elements ; transuranium elements .
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Burma's Drama Could Affect Region; Nation's Abundant Untapped Resources Could Attract Investors
Newspaper article from: The Washington Post; 9/24/1988; ; 700+ words
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Newspaper article from: Knight Ridder/Tribune Business News; 1/6/1997; ; 700+ words
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Newspaper article from: The Washington Times; 6/11/1997; ; 700+ words
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News Wire article from: Interpress Service; 9/28/2007; 700+ words
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BURMA: INDIA SHAMED INTO REVISING STAND ON JUNTA.
News Wire article from: Interpress Service; 10/5/2007; 700+ words
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M2 Presswire; 1/24/2005; 700+ words
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Magazine article from: New Statesman; 10/8/2007; ; 700+ words
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Burma.
Magazine article from: Journal of Southeast Asian Studies; 3/1/1993; ; 700+ words
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News Wire article from: Inter Press Service English News Wire; 10/12/1996; ; 700+ words
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Newspaper article from: International Herald Tribune; 4/15/2003; ; 700+ words
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Burma
Book article from: World Encyclopedia
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Burma (Myanmar)
Encyclopedia entry from: Worldmark Encyclopedia of National Economies
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Burma Road and Ledo Road
Dictionary entry from: Dictionary of American History
BURMA ROAD AND LEDO ROAD BURMA ROAD AND LEDO ROAD. One of the largest engineering projects of World...military highway, the Ledo Road, that ran from Ledo, India, to Muse, Burma. There it joined an existing 717-mile highway, the Burma Road...
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Burma campaign
Book article from: The Oxford Companion to World War II
Burma campaign (see Map 19). Waged between the...dimension. Japan's initial purpose in invading Burma was to protect the flank of its troops fighting...supply route to China of any consequence (see Burma Road ), provided the westernmost bastion...
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China–Burma–India theatre
Book article from: The Oxford Companion to World War II
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