> > There's a difference between EMR and particle radiation. When we say > > something is "radioactive", we mean it emits particle radiation. > > Wrong! Gamma radiation is EMR, and things emitting gamma radiation are > definitely considered "radioactive". Your statement is true only for alpha > and beta radiation, by far the least penetrating of the kinds of radiation. > > --- Brent I kinda figured I would be wrong, at least a little bit, however, does this really change the conclusion? ;-)