单词 | actinium emanation |
释义 | actinium emanationactinium emanation[‚ak′tin·ē·əm ‚em·ə′nā·shən]actinium emanationac·tin·i·um em·a·na·tionactinium emanationA radioisotope associated with actinium identified in 1904, which has a half-life of 3.96 seconds and correspond to 219Rn.actinium emanation |
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