1. Why is that during alpha emission, the atomic numberdecreases by two, and the mass number decreases by four? In youranswer yu should consider what alpha particle is?
2. In beta emission, the atom loses an electron, yet the atomicincrease by one and the mass number stays the same. How is thispossible? It may help if you consider what happen to the number ofneutrons and protons.
3. if an element is bombarded by an neutron and subsequentlyemits a gamma ray, then it follows that the mass number willincrease by one. How is it then, the atomic number remainsunchanged?
