Polonium (Po) and radium (Ra) are two different chemical elements.
Polonium and radium are radioactive chemical elements but they have not the same properties.
Radium and polonium are radioactive natural chemical elements.
Yes, radium and polonium are radioactive elements.
Polonium and radium are radioactive elements and toxic; they are dangerous.
Polonium and radium doesn't affect history.
Radium and polonium doesn't changed the world.
Radium and polonium are principally alpha emitters.
Both radium and polonium are radioactive elements and are not stable.
Polonium and radium are natural chemical elements, metals, solid, very radioactive.
Polonium and radium are continuously studied, but not so much.
Polonium was named after Polonia and radium after radius (ray in the Latin language).
The chemical symbols (not periodic) of radium and polonium are Ra and Po.