单词 | darmstadtium |
释义 | darm·stadt·i·um (därm′shtätē-əm) n. Symbol Ds An artificially produced radioactive element with atomic number 110. Isotopes having mass numbers ranging from 267 to 281 are known, with the most stable isotope (Ds-281) having a half-life of about 10 seconds. See Periodic Table. [After Darmstadt.] |
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