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Antimatter

Key Stage 5

Meaning

Antimatter is a material made from antiparticles, which when in contact with matter will annihilate one another to produce a pair of photons.

About Antimatter

Many particles of matter have antimatter counterparts which have the same mass but opposite electrical charge.
During pair-production a particle and its antimatter counterpart appear.
Most antiparticles are given the name of their counterpart particle with the addition of the prefix anti. However, the antiparticle counterpart of the electron is known as the positron.