Bond radius
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A numerical value that is assigned to the bond distance of a chemical bond (ionic bond, covalent bond, metallic bond, etc.) between the two atoms or ions that are connected, and is determined so that additivity holds for similar chemical bonds. Depending on the type of bond, it is distinguished as ionic radius, covalent bond radius, or metallic bond radius. The latter two and the van der Waals radius are collectively called atomic radius or elemental radius, and are contrasted with ionic radius. [Kinoshita Minoru] Source: Heibonsha World Encyclopedia, 2nd Edition Information |
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化学結合(イオン結合，共有結合，金属結合など)の結合間隔を，結ばれている二つの原子またはイオンに割り振った数値で，類似の化学結合では加成性が成立するように決められている。結合の種類に応じてイオン半径，共有結合半径，金属結合半径のように区別する。あとの二つとファン･デル･ワールス半径とをまとめて原子半径atomic radiusまたは元素半径と呼び，イオン半径と対置する。【木下 実】
出典 株式会社平凡社世界大百科事典 第２版について 情報 |
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