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neptunium series definition

neptunium series

the radioactive series of nuclides starting with neptunium-237, with a half-life of 2.2 x 10 years, and ending with stable bismuth-209: many radionuclides, as plutonium-241 and uranium-237, eventually decay into neptunium-237 and are often considered members of the neptunium series

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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