Which Statement About Antimatter Is Not True

question 6

Multiple Choice

Which statement about antimatter is not true?

• A)An antielectron (positron)is identical to an ordinary electron except it has a positive charge.
• B)Every ordinary particle has a corresponding antiparticle.
• C)When a particle and its antiparticle meet,the result is mutual annihilation that turns all of the mass into energy.
• D)Antimatter has been hypothesized to exist but has never actually been detected.

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