| Indeed, many isotopes spontaneously convert to other elements through radioactivity. |
| The radioactivity in the acetate was later found to be incorporated into cholesterol and the liver. |
| This year is the centennial of the Nobel Prize in Physics shared by Henri Becquerel and the Curies for their pioneering work on radioactivity. |
| In 1899 he identified two forms of radioactivity, which he called alpha and beta particles. |
| What makes dirty bombs particularly troublesome is that radioactivity, like fire, is something we deal with on a daily basis. |
| When this occurs, the electron shoots out of the atom and is called a beta particle, a type of radioactivity. |
