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An ion is a charged atom or molecule. It is charged because the number of electrons do not equal the number of protons in the atom or molecule.

The cation are 

(Aluminium) Al - 
3e^{-} -----> Al^{+3}

(Calcium) Ca - 2e^{-} -----> Ca^{+2}

The anion are 

(Fluoride) F - e^{-} ------> F^{-}

(Iodide) I - e^{-} -----> I^{-}

Please mark it brainiest answer.............If it helped u..............Please..... 
1 5 1
sorry i made a mistake
the anion electron should positive
i am sorry for my mistake
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