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darmstadtium

[dahrm-stat-ee-uh m]
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noun Chemistry, Physics.
  1. a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Ds; atomic number: 110.
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Origin of darmstadtium

named after Darmstadt, the city in Germany where it was first created; see -ium
Formerly ununnilium, element 110.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

darmstadtium in Science

darmstadtium

[därm′shtätē-əm]
Ds
  1. A synthetic radioactive element, first produced by bombarding lead atoms with nickel atoms. It has a mass number of 281, and its most stable isotope has a half-life of over one minute. Atomic number 110. See Periodic Table.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.