(a) What is the composition of `alpha`, `beta` and `gamma` radiations? (b) Can a hydrogen ` (""_(1)^(1) H)` nucleus emit an alpha particle ? ( c) Which one `alpha`, `beta` or `gamma` radiation has the least penetrating power ?

Answer

(a) `alpha` radiation in composed of 2p and 2n, `beta` radiation is composed of electron, while `gamma` radiation is photon or electromegnetic wave. (b) No. (c ) `alpha` radiation has the least penetrating power.