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HippoCampus Environmental Science 18 Online
OpenStudy (anonymous):

Why can beta particles pass through materials more easily than alpha particles? A.) Beta particles are made of pure energy. B.)Beta particles are smaller. C.) Beta particles are not charged. D.) Beta particles move more slowly.

OpenStudy (destinymasha):

Beta particles are smaller. [only made of one electron] alpha particles [ made of 2 neutrons + 2 protons]

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