element 116
American
[el-uh-muhnt wuhn siks-teen]
/ ˈɛl ə mənt ˈwʌn ˌsɪksˈtin /
noun
element 116
Scientific
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An artificially produced radioactive element whose most stable isotope has a mass number of 293 and a half-life of less than one-tenth of a second.
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Also called ununhexium
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See Periodic Table
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.