WORLD HISTORY

Detailed explanation-1: -Muarie Sklodowska Curie (1867-1934) was undoubtedly the most important person to attribute to the discovery of radioactivity. In 1898 she discovered radium as a natural radioactive element.

Detailed explanation-2: -Marie Curie, a French physicist famous for her research on radioactivity, was born on this day in 1867.

Detailed explanation-3: -Question: What did Marie Curie discover? Answer: Marie Curie studied the radiation of all compounds containing the known radioactive elements, including uranium and thorium, which she later discovered was also radioactive.

Detailed explanation-4: -The French chemist, Marie Curie, and her husband discovered the elements polonium and radium. She was a pioneer in the field of radioactivity and won two Nobel Prizes in physics and chemistry. Marie Curie discovered radioactivity.

Detailed explanation-5: -Marie Curie is remembered for her discovery of radium and polonium, and her huge contribution to finding treatments for cancer.