17K views · 1.7K reactions | In July 1898, Marie Sklodowska Curie and Pierre Curie published a work where they mentioned the term radioactivity for the first time. During that same year, the two Nobel Laureates discovered two new elements: polonium (in June 1898) and radium (in December 1898). Watch the story behind the discovery of polonium, as well as radium. #NobelPrize | Nobel Prize | Facebook