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.
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.
The half-life of francium is 22 minutes.
钫的半衰期是22分钟.
It is evident in entries like francium, germanium, scandium, polonium, europium, californium, berkelium and americium.
这一点在钫、锗、钪、钋、铕、锎、锫、镅等元素的拉丁名上颇为明显。
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