Alpha, Beta, Gamma Decay — Prelims Questions

A radioactive nucleus $^A_Z\text{X}$ undergoes a series of decays: one alpha decay and two beta-minus decays. What is the final nucleus?

Which of the following radiations has the highest penetrating power?

Which of the following statements about beta-minus decay is INCORRECT?

A nucleus $^P_Q\text{R}$ undergoes a decay process to form $^S_T\text{U}$. If $S = P$ and $T = Q-1$, what type of decay has occurred?

A radioactive sample emits $N_\alpha$ alpha particles and $N_\beta$ beta particles. If the mass number of the parent nucleus is $A$ and its atomic number is $Z$, what are the mass number and atomic number of the daughter nucleus?

Which of the following radiations would be undeflected when passing through a uniform electric field?

Which decay process is responsible for the formation of an isotope of the same element but in a lower energy state?