• n. [化學(xué)] 錒（元素符號Ac）

來自詞根actino-, 射線，光線，-ium,化學(xué)元素后綴。因該元素在黑暗中發(fā)光而得名。

actinium (n.)

radioactive element discovered in 1899, from Greek actin-, comb. form of aktis (genitive aktinos) "ray, radiance" (see actino-) + chemical suffix -ium.

1. Any of a series of chemically similar, radioactive elements with atomic numbers ranging from 89 ( actinium ) through 103 ( lawrencium ).

錒類任何化學(xué)性質(zhì)相似, 原子序數(shù)在89 ( 錒 ) 與103 ( 鐒 ) 之間變化的放射性元素.

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2. The extraction mechanism and separation process of lanthanum and actinium were studied in HDEHP ( kerosene ) NO 3 system.

本文研究了在HNO_3體系中,P_ ( 204 ) 萃取La和 Ac的 機理及影響La, Ac萃 取分離因素,給出了La, Ac分配的數(shù)學(xué)摸型.

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3. The extraction mechanism and separation process of lanthanum and actinium were studied in HDEHP ( kerosene ) - HNO 3 system.

研究了在HNO_ 3體系中,P_ ( 204 ) 萃取La和 Ac的 機理及影響La, Ac萃取分離因素,給出了La, Ac分配的數(shù)學(xué)模型.

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