What makes every element different from the next? The number of neutrons around the nucleus
The number of electrons in the nucleus
The number of protons in the nucleus
None of the above

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