Chemistry. In form E. Denoting the element einsteinium. Now disused.
| 单词 | θ68907 |
| 释义 | the world > matter > chemistry > elements and compounds > metals > specific elements > einsteinium > [noun] (2) E1955 Chemistry. In form E. Denoting the element einsteinium. Now disused. einsteinium1955 An artifically produced radioactive element. Symbol Es. Atomic number 99. Atomic mass of isotope 253 (1967) 253·0847. |
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