单词 | 几秒钟 |
释义 | 〔lawrencium〕A short-lived, radioactive synthetic transuranic element produced from californium and having isotopes with mass numbers 255 through 260 and half-lives of a few seconds to three minutes; atomic number 103. See table at element 铹:一种寿命期短的、人工合成的放射性超铀元素,从锎中生成,有质量从255到260的同位素,半衰期从几秒钟到三分钟;原子序数103 参见 element |
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