单词 | element 111 |
释义 | element 111 element 111 n.(名词)An artificially produced radioactive element with atomic number 111 whose isotope has a mass number of 272 and a half-life of 1.5 milliseconds.Also called unununium 第111号元素:人造放射性元素,原子序数号111,其同位素质量数为272,半衰期为1.5毫秒也作 unununium |
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