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radioactinium |
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radioactinium [¦rād·ē·ō·ak′tin·ē·əm] (nuclear physics) Conventional name for the isotope of thorium which has mass number 227 and is in the actinium series. Symbolized RdAc. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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