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element 116

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Uuh

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. Also called ununhexium See Periodic Table.

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Shoelaces, rainbow, toothpaste, and haircuts are all what type of noun?

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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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