francium

英 ['frænsɪəm]美 ['frænsɪəm]

n. 元素钫

中文词源

francium 钫

来自法国上世纪核物理学家Marguerite Catherine Perey以其祖国命名的化学元素。

英文词源

francium (n.)

radioactive element, 1946, named by French physicist Marguerite Catherine Perey (1909-1975) who first identified it at the Curie Institute in Paris, from Latinized form of France + element ending -ium.

双语例句

1. The half - life of francium is 22 minutes.

钫的半衰期是22分钟.

来自辞典例句

2. Francium is the densest of the Alkali Metals and also radioactive.

钫是碱金属中密度最大的,具有放射性.

来自互联网

3. Even Francium's most stable isotope, Francium - 223 only has a half - life of 22 minutes.

钫的最稳定的同位素, 钫 -223 也只有22分钟的半衰期.

来自互联网

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