2024TrialMultiple choice
Q7
1 mark
Question
A radioactive isotope decays by alpha and beta particle emission. Over a number of decays, the nucleon number decreases by 4 while the proton number is unchanged.
How many alpha and beta particles have been emitted?
A. 2 alpha particles and 1 beta particle
B. 1 alpha particle and 2 beta particles
C. 1 alpha particle and 1 beta particle
D. 2 alpha particles and 2 beta particles
Syllabus alignment
Module 8 · From the Universe to the Atom
- Properties of the NucleusAnalyse alpha, beta and gamma decay and predict radioactive activity using half-life models.