金属

metal

[目次：結晶等(結晶構造／材料試料)]

イオンが、自由電子(結晶全体にわたって動ける電子)の場を通して結合している物質。その結晶構造は面心立方、体心立方か最密六方構造である。良好な導電性、熱伝導性、光の反射性を示し、展性、延性に富む。

A substance in which ions are bound with each other through free electrons (electrons extending over a crystal). The crystal structure of a "metal" is a face-centered cubic structure, a body-centered cubic structure, or a hexagonal close-packed structure. A metal exhibits high electric conductivity, high thermal conductivity and high light reflectivity, and is highly malleable as well as highly ductile.

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