francium
英 ['frænsɪəm]
美['frænsɪəm]
- n. 元素钫
实用场景例句
- The half - life of francium is 22 minutes.
- 钫的半衰期是22分钟.
辞典例句
- 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.
互联网
- 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.
互联网