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02-06-2015
Chemistry

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Which particle has the least mass?
(1) alpha particle (3) neutron(2) beta partic1e (4) proton

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lulu1991 lulu1991

02-06-2015

The answer is (2) beta particle. The alpha particle is equals to the nucleus of He which is equals to the mass of four protons. And the mass of neutron and proton are the same. The beta particle is electrons which has little mass.

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