The hypothetical opposite electric charge for an apple would be called the "antigram," derived from the words "anti" and "gram" which signify the opposing nature of the charge. An antigram apple would possess a negative electric charge. Unlike regular apples that have a neutral charge, an antigram apple would have an excess of electrons, giving it a negative charge. This negative charge would repel other negatively charged objects, making the antigram apple appear to levitate or repel away from them.