Discover of New Elements
"The Curies worked together investigating radioactivity, building on the work of the German physicist Roentgen and the French physicist Becquerel" (BBC History, 2013).
"The Curies worked together investigating radioactivity, building on the work of the German physicist Roentgen and the French physicist Becquerel" (BBC History, 2013).
" In July 1898, the Curies announced the discovery of a new chemical element, polonium. At the end of the year, they announced the discovery of another, radium" (BBC History, 2013).