noun🔗ShareIonAn atom or group of atoms bearing an electrical charge, such as the sodium and chlorine atoms in a salt solution."When salt dissolves in water, it breaks down into sodium ions and chloride ions. "Wenn Salz sich in Wasser auflöst, zerfällt es in Natrium-Ionen und Chlorid-Ionen.chemistryphysicselementChat with AIVocabulary GamePractice Reading