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actinon |
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actinon (ăk`tənŏn'): see radon radon (rā`dŏn), gaseous radioactive chemical element; symbol Rn; at. no. 86; mass no. of most stable isotope 222; m.p. ..... Click the link for more information. . actinon [′ak·tə‚nän] (nuclear physics) A radioactive isotope of radon, symbol An, atomic number 86, atomic weight 219, belonging to the actinium series. Also known as actinium emanation (Ac-Em). 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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