Answer:
Uranium emission of radiation
Step-by-step explanation:
Henri Becquerel. Born on December 15, 1852 in Paris, France. Died on August 25, 1908, in Le Croisic.
In 1896 Henri Becquerel entertained the idea that uranium absorbed the energy of the sun and in consequence it emitted the energy in the form of X-rays; despite the fact this hypothesis was refuted, Becquerel continued with his development of a photographic plate; to his surprise, he observed the images obtained were very clear; in this way he proved that the radiation emanated by the Element 92 was evident without the aid of any external source. This is how Henri Becquerel found Radioactivity.