Question

What differs between a radioactive isotope and a stable isotope?

A. Stable isotopes are shorter
B. Radioactive Isotopes last for less time
C. Radioactive isotopes last longer.
D. There is no difference

Answer 1

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

Answer 2

A radioactive isotope is emitting particles such as a fast moving electron or positron (radiation) and this is changing its structure. Eventually it may reach a stable configuration and will no longer decay. An stable isotope is simply a name for a form of an element which is chemically identical to other atoms of the element but with a different number of neutrons. I hope this helps!