What differs between a radioactive isotope and a stable isotope?
A.Radioactive isotopes last longer.
B.Radioactive isotopes last for less time.
C.Stable isotopes are shorter.
D.There is no difference.
B. Radioactive isotopes last for less time, is the one among the following choices given in the question that shows the way a radioactive isotope and a stable isotope differs. It last for less time because it is not stable.
