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actinium series

actinium series, natural radioactive decay series beginning with uranium-235 (also called actinouranium) and ending with lead-207. See radioactivity.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

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uranium: Isotopes and Radioactive Decay - Isotopes and Radioactive Decay Naturally occurring uranium is a mixture of three isotopes. The most ...

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