Question

what is the difference between iodine and bromine

Answer 1

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Here is your answer:-
Iodine: Iodine is a non-metal. It is used to prevent thyroid problems and also it is used as an antiseptic.

Bromine: Bromine is a non-metal which is in liquid form. It is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly coloured gas

Answer 2

Chlorine has the ability to take electrons from both bromide ions and iodide ions. Bromine and iodine can't get those electrons back from the chloride ions formed. That means that chlorine is a more powerful oxidising agent than either bromine or iodine. Similarly bromine is a more powerful oxidising agent than iodine.