Why can't alpha particles penetrate deeply into solids?
Alpha particles have low mass.
Alpha particles have high mass.
Alpha particles have low velocity.
Alpha particles have high velocity.
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alpha particles penetrate deeply into soil because they hve Beta particles are electrons that move very quickly -- that is, with a lot of energy. Beta particles travel several feet when emitted from a radioactive source, but they're blocked by most solid objects. ... These extremely high energy photons can travel through most forms of matter because they have no mass.
so OPTION A IS CORRECT
so OPTION A IS CORRECT
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