Question

What is Anti-Matter?​

Answer 1

Answer:

Antimatter is a material composed of so-called antiparticles. ... But its antiparticle, called a positron, has the same mass but a positive charge. When a particle and its antiparticle meet, they annihilate each other – disappearing in a burst of light.

Answer 2

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Antimatter is a material composed of so-called antiparticles. It is believed that every particle we know of has an antimatter companion that is virtually identical to itself, but with the opposite charge. ... But its antiparticle, called a positron, has the same mass but a positive charge.

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