elementary entity

Japanese: elementary entity(英語表記)elementaryentity
elementary entity

...its symbol is mol. Here, elementary entity is the smallest chemical element that determines the properties of the substance, and is an atom, molecule, ion, electron, or other particle, or a collection of these particles with a specific composition. The amount of substance is also called the amount of substance, and is the number of elementary entities that make up the substance. It is a concept born from atomic theory, which states that chemical reactions are determined not by mass or volume, but by the relationship between the number of atoms and molecules, and is the amount that has traditionally been called the number of gram atoms or the number of moles. ...

*Some of the terminology explanations that mention "elementary entity" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…その記号はmolである〉。ここで要素体というのはelementary entityの訳であって,その物質の性質を規定している化学的な最小要素であり,原子,分子,イオン,電子その他の粒子,もしくは組成の特定されたこれら粒子の集りである。物質量は物質の量ともいい,その物質を構成している要素体の数量であって,化学反応が質量や体積によってではなく,原子や分子の数の関係できまるという原子論から生まれた概念であり,従来,グラム原子数とかモル数といわれてきた量である。…

※「elementary entity」について言及している用語解説の一部を掲載しています。

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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