. (a) What is the composition of α, β and γ radiations? (b) Which one α, β and γ radiation has the least penetrating power?


(a) What is the composition of α, β and γ radiations?

(b) Which one α, β and γ radiation has the least penetrating power?

Best Answer

(a) Alpha radiations are composed of two protons and two neutrons, α radiation carries a double positive charge. Beta radiations are composed of fast moving electrons and are negatively charged. Gamma radiations are composed of photons or electromagnetic waves like X rays.

(b) Radiations which have the least penetrating power are alpha radiations.

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