NSEP · Atoms and Nuclei · Quiz
5 real NSEP questions on Atoms and Nuclei. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.
Question 1 of 5
MEDIUMA radioactive nucleus undergoes a series of decays: it first emits an alpha particle, then a beta particle, and finally another alpha particle. If the original atomic number was Z and mass number was A, what are the atomic number and mass number of the final nucleus?