Physics 0625 · IGCSE · Radioactivity

Radioactivity — practice question

The radioactive isotope radon, $^{222}_{86}\text{Rn}$, undergoes alpha $(\alpha)$ emission. As this decay occurs, an isotope of polonium, Po, is formed. How many neutrons are present in the nucleus of this polonium isotope?

A130
B132
C134
D136

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