1903 Mr. and Mrs. Curie and becquerel won the Nobel Prize in physics for their research on radioactivity.191kloc-0/won the Nobel Prize in chemistry again in, becoming the first person in the world to win the Nobel Prize twice.
Madame Curie's achievements include initiating the theory of radioactivity, inventing the technology of separating radioactive isotopes, and discovering two new elements: polonium and radium. Under her guidance, people used radioisotopes to treat cancer for the first time. Due to long-term exposure to radioactive substances, Madame Curie died of malignant leukemia on July 3, 1934.
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Scientific achievements
In the experimental research, Madame Curie designed a measuring instrument, which can not only measure whether a substance has radiation, but also measure the intensity of radiation. After repeated experiments, she found that the intensity of uranium rays is directly proportional to the uranium content in the material, but has nothing to do with the existing state of uranium and external conditions.
Madame Curie made a comprehensive investigation of known chemical elements and all compounds, and made an important discovery: an element called thorium can automatically emit invisible rays, which shows that the phenomenon that an element can emit rays is not only the characteristics of uranium, but also the same characteristics of some elements.
She called this phenomenon radioactivity, and called elements with this property radioactive elements. The radiation they emit is called "radiation".
References:
Baidu Encyclopedia-Marie Curie