http://large.stanford.edu/courses/2016/ph241/caballero2/ Becquerel was working on cathode ray fluorescence. By chance, he left some uraniumsalts next to photographic plates. Later, the plates appeared exposed despite being protected from sunlight. He discovered that uranium salts emit penetrating radiation that can mark a photographic plate. Further studies … See more Later, Ernest Rutherfordand Soddy showed that uranium and other heavy elements emit three types of radiation: 1. Alpha radiation is nuclei without the container's … See more Artificial radioactivity is also known as induced radioactivity. It is the radioactivity of substances caused by man in various activities such as: 1. Medicine. 2. Industry. 3. Mining. 4. … See more
The Discovery of Radioactivity - Lawrenc…
WebThe 1896 discovery of radioactivity by Henri Becquerel inspired Marie and Pierre Curie to further investigate this phenomenon. They examined many substances and minerals for signs of radioactivity. They found that the mineral pitchblende was more radioactive than uranium and concluded that it must contain other radioactive substances. WebHenri Becquerel, in full Antoine-Henri Becquerel, (born December 15, 1852, Paris, France—died August 25, 1908, Le Croisic), French physicist who discovered radioactivity through his investigations of uranium and … notty or nice
17.2: The Discovery of Radioactivity - Chemistry LibreTexts
WebFeb 22, 2024 · Ernest Rutherford is known for his pioneering studies of radioactivity and the atom. He discovered that there are two types of radiation, alpha and beta particles, coming from uranium. He found that … WebSep 23, 2024 · The discovery of radioactivity took place over several years beginning with the discovery of x-rays in 1895 by Wilhelm Conrad Roentgen and continuing with such people as Henri Becquerel and the Curie family. The application of x-rays and radioactive materials is far reaching in medicine and industry. how to shrink cloth