ion
das Ion, die Ionen
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ion
An electrically charged atom or molecule. It forms when a neutral atom or molecule gives up or takes in one or more electrons.
Kochsalz zerfällt in Wasser in positive Natrium-Ionen und negative Chlorid-Ionen.
Table salt breaks down in water into positive sodium ions and negative chloride ions.
| gender | neuter das |
|---|---|
| plural | die Ionen |
| genitive | des Ions |
| singular | plural | |
|---|---|---|
| nominative | das Ion | die Ionen |
| accusative | das Ion | die Ionen |
| dative | dem Ion | den Ionen |
| genitive | des Ions | der Ionen |
The article changes with the case; it is shown in colour.
'Ion' is a technical term from the natural sciences, especially chemistry and physics. In normal everyday life, this word is rarely used.
Im Chemieunterricht lernen wir, was Ionen sind.
In chemistry class, we learn what ions are.
'Ion' is almost always combined with an adjective that describes its electrical charge. The most common combinations are 'positives Ion' (positive ion) and 'negatives Ion' (negative ion).
Ein Atom, das ein Elektron verliert, wird zu einem positiven Ion.
An atom that loses an electron becomes a positive ion.
The verb 'ionisieren' (to ionize, to turn into an ion) and the noun 'die Ionisation' (ionization, the process of ion formation) are derived from the noun 'das Ion' (ion). These words belong to the same word family.
Starke Strahlung kann die Luft ionisieren.
Strong radiation can ionize the air.
