What is the difference between ions and molecules? A. ions have an electrical charge whereas molecules do not. B. ions are from metal elements only whereas molecules contain only non- metal elements C. ions arise from compounds between non-metal elements, whereas mole- cules arise from metal and non-metal elements D. an ion may be formed from a single atom but molecules always involve more than one atom
Option D. An ion can be formed from a single atom however molecules usually involve multiple atom.