|MadSci Network: Physics|
The opposite charges on these particles will attract each other, and when they collide the particles will be annihilated, and two photons will be created. The photons come about to carry away the energy of the collision, and there are two photons so that angular momentum will be conserved. A positron is one example of antimatter. It is the complete opposite to an electron (except for mass). When any particle meets its antiparticle, the two will be converted completely into energy.
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