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    Physics & Astronomy
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    Physics for Scientists and Engineers
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    Exam 41: Elementary Particles and the Beginning of the Universe
  5. Question
    Current Thought Is That All Matter Is Composed of
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Current Thought Is That All Matter Is Composed of

Question 21

Question 21

Multiple Choice

Current thought is that all matter is composed of


A) six quarks.
B) four quarks and four leptons.
C) six leptons.
D) six quarks and four leptons.
E) six quarks and six leptons.

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