Positively elementary discoveries.U.S. and Russian Russian associated in some way with Russia. Russian blue a breed of cats with short, dense, silver-tipped blue-colored coat and vivid green eyes. scientists say they have created two new chemical elements. The new elements, numbers 113 and 115 on the periodic table, were created very briefly fast summer in a particle accelerator particle accelerator, apparatus used in nuclear physics to produce beams of energetic charged particles and to direct them against various targets. Such machines, popularly called atom smashers, are needed to observe objects as small as the atomic nucleus in studies in Dubna Dubna (d  bnŭ`), town (1989 pop. 66,000), Moscow region, central European Russia, near the confluence of the Volga and Dubna rivers. , Russia, and their existence must be confirmed by more testing. By international convention, element 113 is getting a temporary name, Ununtrium (Uut on the periodic table),while 115 is being designated Ununpentium (Uup). Elements as heavy as uranium uranium (yrā`nēəm), 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. (No. 921) are found in nature, but others have only been created in Labs. The most recent creation of an element was in 1994: No. 110, Darstadtium, was named for the German city where it was discovered.
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