Charge q is 1 unit of distance away from the source charge S. Charge p is six times further away. The force exerted between S and q is the force exerted between S and p. 1/6
6 times
1/36
36 times

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