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actinium series
actinium series
noun
Chemistry
.
the radioactive series that starts with uranium 235 and ends with a stable isotope of lead of mass number 207.
Origin:
1955–60
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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actinium series
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Actinium series
is always a great word to know.
So is
ethereal
. Does it mean:
So is
combustion
. Does it mean:
So is
titanic
. Does it mean:
pertaining to, containing, or resembling ethyl ether
existing as free, uncombined atoms
a mixture composed of different substances or the same substance in different phases, such as solid ice and liquid water
rapid oxidation accompanied by heat and light, or a chemical combination attended by production of heat and light
a reaction in which two or more substances combine to form another compound
of or containing titanium, especially in the tetravalent state or three valence state
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Collins
World English Dictionary
actinium series
—
n
a radioactive decay series that starts with uranium-235 and ends with lead-207
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Actinium series
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