It depends upon the isotope.
Here is a table for Polonium:
http://ie.lbl.gov/education/parent/Po_iso.htm
Polonium and radium are radioactive elements and toxic; they are dangerous.
yes, it is also very radioactive.
Polonium has 33 isotopes, more than any other element, of which all are radioactive.
No. Polonium is a solid at room temperature and is not chemically inert.
A radioactive element in period 6 of the periodic table is Polonium (Po). It is a highly radioactive metal with no stable isotopes. Its most stable isotope, Polonium-210, has a half-life of about 138 days.
Yes, radium and polonium are radioactive elements.
Polonium-218 is radioactive.
Polonium is extremely radioactive.
Polonium is a radioactive chemical element.
No. Polonium is an extremely deadly radioactive toxin.
Radium and polonium are radioactive natural chemical elements.
No. Polonium is a natural product of radioactive dacay.
Polonium is extremely toxic and also radioactive.
Polonium is dangerous because is extremely radioactive.
Polonium and radium are radioactive elements and toxic; they are dangerous.
Polonium is both chemically toxic and radioactive.
No. The Curies did not discover uranium. They discovered polonium and radium, of which polonium is more radioactive.