...This allows us to know not only the type of elements that make up a substance, but also its composition. When a substance is made up of molecules, it is called a molecular formula. For polyatomic molecules and ions, a small number indicating the number of atoms that make up a molecule or ion is written to the lower right of the element symbol. However, the suffix "1" is not added. ... *Some of the terminology that mentions "molecular formula" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…これにより物質をつくっている元素の種類のみならず,その組成も知ることができる。物質が分子からできている場合にはとくに分子式molecular formulaといい,多原子分子やイオンでは,元素記号の右下に1個の分子あるいはイオンを構成する原子の数を表す数字を小さく記す。ただし1という添字はつけない。… ※「molecular formula」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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