define an ion . in case of sodium chloride name the cation and anion give symbols for each term.
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An ion is an atom or group of atom that necessary contain some charge on it.
in case of sodium chloride the cation is sodium and anion is chlorine.
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An ion means an atom with a net electric charge due to loss or gain of electrons.for the example consider sodium cations Na+ and chlorine anions Cl- Sodium has positive 1 charge and chlorine has a negative 1 charge.
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