Question

What is anti-matter?​

Answer 1

Answer:

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. ... When a particle and its antiparticle meet, they annihilate each other – disappearing in a burst of light.

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Answer 2

Explanation:

Antimatter refers to sub-atomic particles that have properties opposite normal sub-atomic particles. Antimatter is the opposite of normal matter. More specifically, the sub-atomic particles of antimatter have properties opposite those of normal matter.

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