discovered radioactivity
Henry Becquerel discovered radio-activity.
Marie Curie discovered RADIUM. Sir Henry Becquerel found radioactivity in 1896.
Henry Becquerel radioactivity experiment is an example of finding some thing out of surprise without looking for it. The actual experiment is mentioned on the wikipedia page of Henry Becquerel. Once in my Nuclear Engineering class my teacher told that Henry placed his personal belongings into a drawer along with a salt piece of Uranium and photographic plates. The plates got fogged. Henry was curious to know what caused the fogging of the plates. He experimented by placing the things that were present in the drawer earlier one by one along with a photo graphic plate and recorded the results. Well the realted link will take you to a video on the experiment conducted by Henry Becquerel.
Radioactivity was discovered during 1896 by Henri Becquerel, who was a French scientist when he was working on phosphorescent materials. Other research was done by Becquerel, Ernest Rutherford, Paul Villard, Pierre Curie, Marie Curie, and others afterwards.
The alpha particle was discovered by Ernest Rutherford. For more details see the links below.
Radioactivity was discovered in 1896 by Henri Becquerel, a French scientist, while testing phosphorescent materials with photographic plates. He discovered that, when the plates were covered with black paper, that phosphorescent materials did not affect the plates until he used uranium salts.
Henri Becquerel discovers the radioactivity.
Jean Becquerel died in 1953.
Jean Becquerel was born in 1878.
Henri Becquerel discovered radioactivity
Henri Becquerel was born on December 15, 1852.
Henri Becquerel was born on December 15, 1852.