Answer to Question #125228 in Atomic and Nuclear Physics for Asif Sultan

Question

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How?

Answer 1

Alpha$(\alpha)$ particles is the most energetic ray, this is because alpha particles have very large mass compared to beta$(\beta)$ and gamma$(\gamma)$ rays. Alpha particles are similar to a helium nucleus and it comprises of 2 protons and 2 neutrons. A beta particle is an accelerated electron while gamma ray is a photon which comprise of zero mass.