actinium造句_actinium例句_actinium用法_V5词典

1. All are radioactive and have similar properties to actinium.: 这些元素都有放射性，而且性质与锕相似。

2. Discovery of element actinium by French chemist Andr…-Louis Debierne.: 法国化学家安德烈一路易·德比埃尔内发现锕元素。

3. Actinide: Any of the series of 15 consecutive chemical elements in the periodic table from actinium to lawrencium (atomic numbers 89-103).: 锕系：周期表中从锕到铹（原子序数89～103）的十五个依次排列的一组化学元素。

4. But was pulls out empties entire heart to love your actinium.: 而是掏空了整个心在爱你锕。

5. There are three naturally occurring radioactive series - the thorium series, the actinium series, and the uranium series.: 有三个天然存在的放射系列，即钍系、锕系和铀系。

6. There are three naturally occurring radioactive series - the thorium series, the actinium series, and the uranium series.: 有三个天然存在的放射系列，即钍系、锕系和铀系。

7. a radioactive element of the alkali-metal group discovered as a disintegration product of actinium.: 一种碱金属属的放射性元素，是锕瓦解的产物。

8. actinium complex: 锕络合物

9. a series of 15 radioactive elements with increasing atomic numbers from actinium to lawrencium.: 15个从锕到铹的原子量递增的放射性元素。

10. actinium hydroxide: 氢氧化锕

11. Other radioactive elements have been discovered since: actinium, radiothorium and mesothorium, ionium, etc.: 自那以后发现的其他放射性元素有：锄、放射性钍和新针、镍，等等。

12. "The natural series are the thorium series, the uranium series, and the actinium series. These are headed by naturally occurring species of unstable nuclei that have half-lives comparable to the age of the earth.": 天然的放射性系是钍系、铀系和锕系。这三个系领头的元素都是天然存在的不稳定原子核,其半衰期与地球的年龄差不多。

13. Actinide: Any of the series of 15 consecutive chemical elements in the periodic table from actinium to lawrencium (atomic numbers 89-103).: 锕系:周期表中从锕到铹(原子序数89～103)的十五个依次排列的一组化学元素。

14. actinium compound: 锕化合物

15. a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead.: 一种存在周期短的放射性金属元素，由铀形成，能分裂成锕然后分裂成铅。

16. actinium isotope: 锕同位素

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