actinium中文什么意思

n.
【化学】锕〔元素名，符号为 Ac〕。

• actinium a:    锕a
• actinium b:    铅同位素; 锕b
• actinium complex:    锕络合物

例句与用法

1. Actinium decay series
   锕衰变系

英文释义

名词

1. a radioactive element of the actinide series; found in uranium ores
   同义词：Ac, atomic number 89

百科释义

Actinium is a radioactive chemical element with symbol?Ac (not to be confused with the abbreviation for an acetyl group) and atomic number?89, which was discovered in 1899. It was the first non-primordial radioactive element to be isolated.