- Chemical elements are discovered or prepared, not invented.
- Polonium and radium have useful applications.
The discovery (not invention) of polonium and radium didn't changed the history.
Polonium and radium doesn't affect history.
Discoveries of polonium and radium doesn't affect life.
The discoveries of radium and polonium doesn't affect the atom model.
Radium and polonium have many applications but they are not so important to affect us today.
Polonium and especially radon contribute to the natural environmental radioactivity.
Polonium and radium's affect on our lives today are for example the meters on our cars, they glow because of the radium and also some wristwatches the light you get when you press the button on the side. Radium was discovered by a woman named Marie Cuire, she's married, but she obviously died because of too much radium.
Radium and polonium are radioactive natural chemical elements.
Polonium and Radium .
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.