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GCSE chemistry help!!

this question asking me why does potassium iodide conduct electricity, and the answer is because the ions move. but i thought its the electrons that move?? im confused?
Reply 1
Solid potassium iodide does not conduct electricity, molten/aqueous KI does conduct however. For a current to be conducted you need the movement of charge - this is very often electrons but does not need to be, instead it can be ions moving (here K+ ions and I- ions move and conduct a current)

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