詞語:actinium
actinium的同義詞
n. ac ,atomic number 89
actinium的解釋
actinium[æk'tiniəm]n. 錒(元素符號Ac)
actinium的意思
Actinium 錒;actinium emanation 錒射氣;uranium actinium 錒鈾;actinium group 錒系;actinium uranium 錒鈾;
actinium的參考例句
1.Love, how happy phrase actinium. ! 愛,多麼美好旳字眼錒。!
2.a radioactive element of the alkali-metal group discovered as a disintegration product of actinium. 一種軟質的銀色金屬元素,稀土屬,沒有穩定的同位素,作為鈾的裂變產物以放射性狀態被發現。
3.Either of two decay products of thorium, mesothorium I, an isotope of radium, or mesothorium II, an isotope of actinium. 釷的兩種放射性生成物之一,即新釷號,它是鐳的同位素,或新釷2號,它是錒的同位素。