1 Jan 1898 Jahr - Marie Curie

Beschreibung:

-7 November 1867 - 4 July 1934, France
-Marie Curie studied the radiation of all compounds containing the known radioactive elements, including uranium and thorium, which she later discovered was also radioactive. She also found out that: you can exactly measure the strength of the radiation from uranium; the intensity of the radiation is proportional to the amount of uranium or thorium in the compound - no matter what compound it is; the ability to emit radiation does not depend on the arrangement of the atoms in a molecule; it must be linked to the interior of the atom itself. discovered two new radioactive elements: radium and polonium
-Curie discovered the radioactive element radium (in the form of radium chloride), extracting it from uraninite

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