Polonium content in pitchblende is very low, but the chemical nature of polonium and other mineral

Madame Curie ancestral Poland, won the Nobel Prize twice a lifetime, not only from her outstanding scientific achievements, but also because she is living in Europe a hundred years ago a closed society of women; home cockpit 737 her great more from her ordinariness , as is the ordinary people's daughters, as a wife and mother, but at the same time as the prestigious outstanding scientists. In World War I, the war in Europe was filled by the Marie Curie design, commonly home cockpit 737 known as "Little Curie" radiation treatment center, and the use of radium radiation to treat cancer, "Curie therapy," during the war to save a total of More than 100 million people live, to bring great human being, and known as "a benefactor of mankind." home cockpit 737
In the end between Madame Curie and radium kind of a chance home cockpit 737 encounter, the achievements of the most important discoveries in the history of modern science, was from 1897, Madame Curie, Paris, France decided to pursue a doctorate at the Sorbonne (University of Paris-Sorbonne) said onwards. Due to the prevailing background French women get science doctorate yet, so be sure to select Madame Curie to provide a fruitful harvest and creative theme as a doctoral thesis, in order to successfully obtain a doctorate from the then male-dominated French scientific community.
To this end, Madame Curie access to a variety of experimental studies at the time, the French scientist Henri Becquerel (Antoine Henri Becquerel) a related uranium salts can also be the same as the X-ray radiation emitted unknown, enabling air and other gases research conductivity indulge endless, which is following the German Roentgen (Wilhelm Rontgen) discovered X-rays in 1895, to allow the scientific community to another surprising discovery. Madame Curie innate personality traits, home cockpit 737 including particularly good memory, concentrate on learning and thirst for knowledge, perseverance home cockpit 737 and rebellious; So what is the nature of radiation? Madame Curie is a way to make eyes light up research topic, it is in the middle of her stomach doctoral thesis. Madame Curie is estimated that this will be a big leap forward in the field of adventure and science.
1896, Madame home cockpit 737 Curie put their entire being into uranium salts studies, she is widely collecting home cockpit 737 and studying the various salts of uranium ore, she was attracted by the magic of uranium ore salt-rays, she will especially love dedicated to the This particular ore. In the study of uranium ore salt, she asked myself: There is no reason to be able to prove that the uranium chemical elements emit radiation only. Her guess there'll be other elements home cockpit 737 must also have the same energy, but it is not yet know it.
Madame Curie quickly gather a variety of metals and mineral samples from other professors and engineers at the school, according to the elements of Mendeleyev (Dmitri Mendeleev) the periodicity arranged individually determined, the results soon found another element thorium Compound (thorium), can also automatically send the same with uranium radiation, the intensity is also very close. Marie Curie recognized that this phenomenon is by no means surprising uranium unique characteristics, this wonderful home cockpit 737 thing must have a new name, so put this phenomenon Madame Curie named "Radioactive" (radioactivity), and substances such as uranium, thorium, etc. with this special home cockpit 737 "radiation" feature, called "radioactive" (radioelement).
Later, when Madame Curie in measuring the same school physicists Dima Kai (M. Demarcay) available to her and chalcocite pitchblende radioactivity was found with respect to the content of uranium and thorium minerals, radioactivity surprisingly strong. She boldly assume that contains uranium and thorium are also stronger than other kinds of radioactive material in these minerals, and she has been tested element was discovered, there is no presence of radioactive than uranium and thorium is also a strong element, that this mineral The new element was the presence of an unknown chemical element table does not have, and great strength of this new radioactive elements.
There is nothing more than allow scientists discovered a new element of excitement? 1898 Marie Curie scientist husband Pierre (Pierre Curie) home cockpit 737 for this new element, also interrupted his studies to help his wife hand. He originally thought it was just a temporary help his wife, the couple did not realize Curie work together hand in hand, unknown to the scientific strides in the field for up to eight years, until 1906, Mr. Ju Lai accident died so far. In extremely poor laboratory conditions, after a couple home cockpit 737 of long-term efforts Curie perseverance, in July 1898, they announced the discovery of a new element, home cockpit 737 which radioactive than pure uranium 400 times higher. To commemorate her ordeal stricken homeland Poland (P oland), was named the new element polonium (polonium).
Polonium content in pitchblende is very low, but the chemical nature of polonium and other mineral compounds are different, relatively easy to identify, but because the half-life of polonium elemental too short, only about 138 days, so the couple believes in asphalt Curie There is also a uranium content of more than the polonium and radioactive polonium is stronger than the existence of a new element. home cockpit 737 In December 1898, according to Curie couple large number of experimental results were announced, they found a second radioactive elements, radioactive elements in the new 900 times stronger than uranium, they put this new element named "radium" ( radium), mean-rays (radiation) of the giver.
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