橘子朗文词典

francium

F 开头单词

基本解释

  • n.[化]钫

同根派生

     

英汉例句

  • The half-life of francium is 22 minutes.
    钫的半衰期是22分钟。
  • 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。
  • So little is known about it, because there is only about 1 ATOM OF FRANCIUM IN A CUBIC FOOT OF URANIUM ORE!
    对它所知甚少,因为在1立方英尺的铀矿石中,仅有1个钫原子!
  • 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。
  • Because Francium is mainly only found synthetically in laboratory research, it has no known use outside of the laboratory.
    由于钫主要仅在实验室研究中产生,它在实验室外没有已知的用途。