Question

In each case below, write a nuclear decay equation.
i    The polonium isotope  emits an α-particle and changes into an isotope of
lead (Pb).   




ii    The strontium isotope  emits a β-particle and changes into an isotope of
yttrium (Y).   




b    Explain why the nucleon number in your answer to a ii does not change.   
 

9    During the transformation of the thorium isotope  into an isotope of radon (Rn),
a total of three α-particles and two β-particles are emitted. Determine the nucleon number
and proton number of the isotope of radon​

Answer 1

Answer:

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