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element 111 - 2 dictionary results

element 111

 
Use element 111 in a Sentence
–noun Chemistry.
roentgenium.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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element 111  
Symbol Uuu
An artificially produced radioactive element whose isotope has a mass number of 272 and a half-life of 1.5 milliseconds. Atomic number 111. Also called unununium. See Periodic Table.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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