polonium hasn't medical applications.Radium is sometimes used to treat bones cancers.
Radium and polonium are radioactive natural chemical elements.
Polonium and radium doesn't affect history.
Radium and polonium doesn't changed the world.
Polonium and radium are radioactive elements and toxic; they are dangerous.
Radium and polonium are principally alpha emitters.
Yes, radium and polonium are radioactive elements.
Both radium and polonium are radioactive elements and are not stable.
Polonium (Po) and radium (Ra) are two different chemical elements.
Polonium and radium are radioactive chemical elements but they have not the same properties.
Polonium and radium are natural chemical elements, metals, solid, very radioactive.
Polonium and radium are continuously studied, but not so much.