As long as it isn’t opened ....
Could be merely “irritating” or up to “deadly” if it is opened.
Radioactive” covers a very, very wide range of “things” from granitetop counters to Coleman lantern ceramics to gamma-ray sources.
That was an experiment I did back in high school. Took a Coleman lantern mantle, put it next to a chunk of camera film in a sealed envelope, then developed the film in the Camera Club's darkroom (remember those?). Clear image of the mantle on the developed film.