Radium-226 undergoes a series of radioactive emissions and is finally converted into an isotope X.
(a) Write the balanced nuclear equation for the first decay step if the emission is an alpha particle.
(b) Starting from 88226Ra, the nucleus emits three alpha particles and two beta-minus particles in total. Determine the mass number and atomic number of the final product X and name the element formed.
(c) By how much has the mass number and atomic number changed from the original radium nucleus to the final nucleus X?