Possible Duplicate:
More on matter and anti-matter
Everyone knows that when matter and anti-matter come in contact, they result in pure energy.
I want to know that if atoms and anti-atoms of two different elements are brought in contact, and one having much more charge and mass than the other..will it still result in pure energy because in this case equal amount of opposite charge is not present to counter each other.
Will it result in leftovers ?