Studies and Experiments
"Marie Curie was experimenting with uranium-containing ore, she came up with the term "radioactivity" to describe the spontaneous emissions that they studied. This word is still used today to describe this special characteristic of some elements, radioisotopes. While comparing the activity of pure uranium to a uranium ore sample, she found that the ore was significantly more radioactive than the pure material" (Genetec, 2013), and "concluded that the ore contained additional radioactive components besides the uranium. This observation led to the discovery of two new radioactive elements" (Chemistry International, 2011).
"Marie Curie was experimenting with uranium-containing ore, she came up with the term "radioactivity" to describe the spontaneous emissions that they studied. This word is still used today to describe this special characteristic of some elements, radioisotopes. While comparing the activity of pure uranium to a uranium ore sample, she found that the ore was significantly more radioactive than the pure material" (Genetec, 2013), and "concluded that the ore contained additional radioactive components besides the uranium. This observation led to the discovery of two new radioactive elements" (Chemistry International, 2011).