(a(i))[1]
State what change this neutron undergoes.
(a(ii))[2]
Explain why charge remains conserved during this change.
(b)[3]
Complete the nuclide equation for the $\alpha$-decay of radon-212 so that an isotope of polonium, symbol Po, is produced. $^{212}_{86}\text{Rn} \rightarrow$