actinium Ir
A radioactive, inert, gaseous isotope of radon, with a half - life of 3.92 seconds.
锕射气氡的一种放射性的, 惰性的和气态的同位素, 其半衰期为3。
—— 给力词典精选The possibility of its potential application is discussed for separation of actinon - lanthanon mixtures by ion exchange.
讨论了该离子交换法在分离锕 - 镧系元素上应用的可能性。
—— 给力词典精选Any of a series of chemically similar, radioactive elements with atomic numbers ranging from 89 ( actinium ) through 103 ( lawrencium ).
锕类任何化学性质相似, 原子序数在89 ( 锕 ) 与103 ( 铹 ) 之间变化的放射性元素。
—— 给力词典精选Note 3 : Actinide abundance ratios may be applied to measurements of stellar ages.
注 3: 锕充足比率可用于测量恒星的年龄。
—— 给力词典精选A flowsheet of TRPO process for removing actinides from high level waste solution is proposed.
提出了TRPO从高放废液中去除锕系元素流程简图。
—— 给力词典精选