What is the contribution of Antoine Henri Becquerel?
Henri 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 other substances. In 1903 he shared the Nobel Prize for Physics with Pierre and Marie Curie.
What is the contribution of Henri Becquerel in atomic structure?
Like Thomson’s discovery of the electron, the discovery of radioactivity in uranium by French physicist Henri Becquerel in 1896 forced scientists to radically change their ideas about atomic structure. Radioactivity demonstrated that the atom was neither indivisible nor immutable.
For what contribution to chemistry was Henri Becquerel noted?
Nowadays it is generally considered that Becquerel discovered radioactivity by serendipity. It is also known that Becquerel discovered one type of radioactivity, beta particles, which are high-speed electrons leaving the nucleus of the atom.
Who first discovered the phenomenon of radioactivity?
Henri Becquerel
March 1, 1896: Henri Becquerel Discovers Radioactivity. In one of the most well-known accidental discoveries in the history of physics, on an overcast day in March 1896, French physicist Henri Becquerel opened a drawer and discovered spontaneous radioactivity.
Did Henri Becquerel win a Nobel Prize?
For his discovery of spontaneous radioactivity Becquerel was awarded half of the Nobel Prize for Physics in 1903, the other half being given to Pierre and Marie Curie for their study of the Becquerel radiation.
What are 3 types of radioactive decay?
A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha decay (𝛼-decay), beta decay (𝛽-decay), and gamma decay (𝛾-decay), all of which involve emitting one or more particles.
How do you calculate becquerel?
The SI unit for R is the becquerel (Bq), defined by 1 Bq = 1 decay/s. R is also expressed in terms of curies (Ci), where 1 Ci = 3.70 × 1010 Bq.