Radium and Polonium.
radioactivity,polonium,uranium,and radium.
In July 1898 Pierre and Marie Currie published a paper revealing their discovery of "polonium", In December 1898 announced a second new element, "radium"
Marie and Pierre Curie
Pierre Currie
Radium was discovered in 1898 by Marie Curie, Pierre Curie and Gustave Bemont.
Polonium was discovered by Marie Curie and her husband, Pierre Curie, in 1898. They isolated it from pitchblende ore.
The Curies discovered two radioactive elements: polonium and radium.
Polonium was discovered by Marie and Pierre Curie in 1898, who were studying the residues of uranium pitchblende (after uranium separation) from Jachymow; the residue has a greater radioactivity than uranium.
Marie Skłodowska-CurieHope this helped . Megan :)
They worked in Paris.
After Marie and Pierre Curie: the artificial element curium (Cm).
Radium was discovered by Marie Curie, Pierre Curie and Gustave Bemont in 1898 (France).