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3 votes
Which radioactive particle has the slowest speed? A.alpha B.beta C.gamma D.Alpha, beta, and gamma all have the same slow speed

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User ALM
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1 Answer

5 votes
The answer is A. alpha. Alpha particles are the same as helium nucleus which has 2 protons and 2 neutrons. While beta and gamma particles are all have high speed.
answered
User Rayban
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8.3k points
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