In radioactive decay processes, both the mass number (total number of protons and neutrons) and the atomic number (number of protons) are conserved.
As a result of radioactive decay, $_{92}$U$^{238}$ nucleus is converted into $_{91}$Pa$^{234}$. The particles emitted during this decay are - (b) an alpha particle and a beta ($\beta^-$) particle - (c) two $\beta^-$ particles and a neutron - (d) two $\beta^-$ particles and a proton
Asked in Co operative Supervisor & Environment Supervisor (Group C) Exam 2023 · Topic: Nuclear Physics (Radioactivity: Alpha, Beta (Fermi theory, selection rules, parity violation), Gamma decay (multipole transitions, internal conversion).)
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Answer: B. an alpha particle and a beta ($\beta^-$) particle
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