It is possible to conclude from this that the balloon is an INSULATOR. It is because the balloon tends to stay any excess of charges.
An insulator is any material and/or substance capable of staying any excess of charges immobile in a place.
The insulator acts to immobilize any excess of charge added to the insulating substance and/or material, thereby remaining indefinitely in a given place.
In consequence, if a given charge is transferred to an insulator, it will remain at its initial charging location.
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