14651479-n 'a soft silvery metallic element of the rare earth group having no stable isotope';
 
Czech promethium
Chinese (simplified) 钜
English promethium , Pm , atomic number 61
Indonesian prometium
Italian prometeo , promezio
Japanese Ｐｍ , プロメチウム , Pm
Malaysian prometium
Definitions
Japanese
安定した同位元素を持たないまれな土群の柔らかい銀質の鉄分要素
ウランの核分裂生成物として、放射性形態で発見された
English
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
Relations
Hypernym: metallic_element
Semantic Field: substancen
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