I need help with this conservation of energy question

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

Daughter element the new element produced along with a decay particle in a nuclear transmutation 2. half-life the substance that decays in a nuclear transmutation 3. parent element the change of one chemical element into another by nuclear decay or radioactive bombardment 4. transmutation the time required for the decay of one-half of the atoms in a sample of radioactive material

Frequency of electromagnetic waves that a radio station is assigned. what do you call this type of wave?