单词 | berkelium |
释义 | berkelium (once / 1313257 pages) n WORD FAMILY berkelium USAGE EXAMPLESIt is evident in entries like francium, germanium, scandium, polonium, europium, californium, berkelium and americium. New York Times(Jan 04, 2016) “We had to team up with the only place on the planet where berkelium can be produced and isolated in significant quantities,” Düllmann says. Nature(May 07, 2014) The experiment was so difficult in part because berkelium itself is tough to come by. Scientific American(May 07, 2014) n a radioactive transuranic element; discovered by bombarding americium with helium Syn|Hyper Bk, atomic number 97 metal, metallic element any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. |
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