英语词汇“atomic number 61”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词

atomic number 61

释义

Noun: atomic number 61

A soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium
- promethium, Pm

Type of: metal, metallic element

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