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词汇 ytterbium
释义 yt·ter·bi·um AHD[ĭ-tûrʹbē-əm] D.J.[ɪˈtɜːbiːəm]K.K.[ɪˈtɝbiəm]n.Symbol Yb (名词)符号 Yb
  1. A soft, bright, silvery rare-earth element occurring in two allotropic forms and used as an x-ray source for portable irradiation devices, in some laser materials, and in some special alloys. Atomic number 70; atomic weight 173.04; melting point 824°C; boiling point 1,196°C; specific gravity 6.972 or 6.54 (25°C) depending on allotropic form; valence 2, 3. See table at element 镱:一种柔软、明亮的银色稀土元素,存在于两种同素异形体中,被用作便携式的放射线治疗设备的X射线源,也用于一些激光物质和特殊合金中。原子序数70;原子量173.04;熔点824°C;沸点1,196°C;比重依两种同素形体6.972或6.54(25°C);化合价2,3 参见 element
Etymology语源
  1. After Ytterby , a town in Sweden 源自 依特白 ,瑞典一城镇
Related Forms继承用法ytterʹbic AHD[-bĭk] (形容词)
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