5.3a A change in the nucleus of an atom that converts it from one element to another is
called transmutation. This can occur naturally or can be induced by the bombardment of
the nucleus with high-energy particles.
5.3b Energy released in a nuclear reaction (fission or fusion) comes from the fractional
amount of mass that is converted into energy. Nuclear changes convert matter into energy.
5.3c Energy released during nuclear reactions is much greater than the energy released
during chemical reactions.