protactinium的词源

英文词源

protactinium

"The chemical element of atomic number 91, a radioactive metal of the actinide series, occurring in small amounts as a product of the natural decay of uranium", Early 20th century: from proto- 'original, earlier' + actinium, so named because one of its isotopes decays to form actinium.

中文词源

protactinium：镤

prota-,原始的，最早的，actinium,锕。因这种放射性元素为锕的早期存在形式。

该词的英语词源请访问找单词词源英文版：protactinium 词源，protactinium 含义。