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element 109

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.07 sec.
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Noun1.element 109 - a radioactive transuranic element
atomic number 109, meitnerium, Mt
chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
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During decay, one of the atoms gave rise to a daughter element 109, with an atomic mass of 268, and a granddaughter element 107, with a mass of 264.
Physicists spot element 111 by Lipkin, Richard / Science News
GSI, which has an unconfirmed claim to element 109, is now trying to confirm the apparent discovery of element 110.
Discovering transuranic elements at Dubna by Thomsen, Dietrick E. / Science News
Confirmed discoveries of transuranic elements now go as far as element 109.
On the trail of element 110 by Science News
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