![]() Eventually this would lead to the discovery of the neutron. These experiments laid the groundwork for a new era of physics and chemistry.In 1903, Marie and Pierre Curie and Henri Becquerel received the Nobel prize for their work in radioactivity. Her husband also turned his research toward the understanding of radiation. Shortly after this discovery Marie Curie began experiments with uranium to determine the nature of this "radioactivity", a term coined by her.This meant that phosphorescence was not the reason the plate was being exposed and that the uranium was giving off some kind of radiation which could penetrate through the paper wrapped around the photographic plate. ![]() Without exposing the plate and uranium to light, he developed the photographic plate and found to his astonishment that the uranium still exposed the plate through the paper even though the uranium hadn't given off any phosphorescent light.in physics himself and had become a professor. Aged 36, he had only recently completed a Ph.D. Pierre had proposed to her before her journey back to Poland. Back in Paris, in the year 1895, aged 28, she married Pierre Curie. However, a series of cloudy days had passed and his next experiment was sitting in a desk drawer preventing the uranium from being exposed to light which prevented it from giving off light due to phosphorescence. Marie decided to return to Paris and begin a Ph.D. The uranium containing rock made an outline of itself on the photographic plate through the sealed paper. The idea was that the sun would cause the rock to become phosphorescent, thus giving off x-rays and exposing the plate through the paper. It was known that x-rays could penetrate paper, so Becquerel would put a uranium compound in the form of a mineral rock on top of the paper and place these both out in the sun. To test his idea that phosphorescence was related to x-rays, he sealed a photographic plate in black paper to prevent it from being exposed to visible light.Some uranium compounds were phosphorescent, so he happened to be experimenting with them. He thought phosphorescence was related to x-rays, a newly discovered form of radiation. Marie Curie was the first woman to win a Nobel Prize and the first person to win two Nobel Prizes in different sciences. Becquerel was studying phosphorescence (the phenomenon which allows certain toys to glow in the dark after absorbing some light).
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