| The radioactivity in the acetate was later found to be incorporated into cholesterol and the liver. |
| The element itself was actively producing radiation, a property referred to as radioactivity. |
| There's even a couple of yellow radioactivity warning lights for sinister effect. |
| Indeed, many isotopes spontaneously convert to other elements through radioactivity. |
| This year is the centennial of the Nobel Prize in Physics shared by Henri Becquerel and the Curies for their pioneering work on radioactivity. |
| What makes dirty bombs particularly troublesome is that radioactivity, like fire, is something we deal with on a daily basis. |
