• Artikel

Polonium

(2003)
For Marie Curieand Pierre Curie, their discovery of polonium in 1898 was their first success in their search for new radioactive elements. A few years earlier, Henri Becquerel had detected rays emitted from uranium. Originally dubbed " Becquerel rays," these rays would eventually be known as radioactivity, a term Marie Curie coined. Choosing this emerging field as her dissertation topic ...