an Eastern Hemisphere continent: americium or europium? 14. Has one valence electron: calcium or potassium? 15. Doesn’t react with sodium: chlorine or xenon? 16. A metal used in jewelry: sodium or rhodium? 17. Isolated by Madame Curie: radium or rhenium? 18. Its crystals sublime as violet gas: iodine or bromine? 19. Holds its electrons less tightly: copper or gold? 20. One of the two densest metals: osmium or magnesium? 21. Used to disinfect water: boron or chlorine? 22
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123 Journal of Radioanalytical and Nuclear Chemistry An International Journal Dealing with All Aspects and Applications of Nuclear Chemistry ISSN 0236-5731 Volume 291 Number 3 J Radioanal Nucl Chem (2012) 291:769-776 DOI 10.1007/s10967-011-1349-7 Radiological assessment of natural and fallout radioactivity in the soil of Chamba and Dharamshala areas of Himachal Pradesh‚ India S. V. Bara‚ Vishal Arora‚ S. Chinnaesakki‚ S. J. Sartandel‚ B. S. Bajwa‚ R. M. Tripathi & V. D. Puranik
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Marie Curie Marie Curie was born Maria Sklowdaska on November 7th‚ 1867. She was the fifth and youngest child in her family. Times were tough living in the Russian parition of Poland‚ and her family suffered many financial hardships. She attended school and graduated as Valedictorian‚ but all the years of stress lead up to a sort of breakdown‚ and she had to spend some time away from home with her uncle until she felt less depressed. Soon‚ she was ready for higher education. However‚ being a woman
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known as eka- caesium and actinitium K) is a chemical element that has the symbol Fr and atomic number 87. It is the second rarest naturally occurring elements after astatine. Francium is a highly radioactive metal that decays into astatine‚ radium and radon. As an alkali metal‚ it has one valence electron. Francium was discovered by Marguerite Perey in France (from which the element takes its name) in 1939. It was the last element discovered in nature‚ rather than being man made. Outside
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its potential. The radioactive age began in 1869 when Wilhelm Roentgen discovered X-rays‚ being the first practical application of a radioactive invention. (Silverstein‚ 31) In 1898‚ the Curies discovered the element of Radium and from then on America would never be the same. Radium found its way into paint‚ candles‚ and eye washes. In 1938; however‚ Otto Hahn-a German chemist and physicist-fired neutrons at uranium atoms and succeeded in splitting an atom for the first time‚ this event would ultimately
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The History of the Discovery of Radiation and Radioactivity Introduction: Radiation can be defined as the propagation of energy through matter or space. It can be in the form of electromagnetic waves or energetic particles. Ionizing radiation has the ability to knock an electron from an atom‚ i.e. to ionize. Examples of ionizing radiation include: • alpha particles • beta particles • neutrons • gamma rays • x-rays Non-ionizing radiation does not have enough energy to ionize atoms in the material
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Bequerell‚ for research in the area of radioactivity. In 1911‚ she was given a second Nobel Prize in Chemistry for her work in discovering radium and polonium. Discovery of Radium and Polonium Marie Curie received the Nobel Prize in Chemistry in 1911 for her discovery of radium and polonium. She was able to isolate and study the compounds and nature of radium. Louis Pasteur was a French chemist who made a lot of contributions to medicine‚ chemistry and industry that greatly benefited humanity
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numerous amounts of medical literature on radiation‚ “quack radioactive products flourished and mild radium therapy was used in everyday treatments”.6 These radiation compounds‚ on such a large scale‚ led to the recognition that using such amounts of radiation‚ on or in the body‚ can cause serious complications. It was in 1932 that the millionaire sportsman and socialist‚ Edem M Byers died of radium therapy that issued a cease and desist order on advertising the use of Radiothor.12 This was the first
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During the time of the experimentation of Henrietta Lacks cells‚ white people were seen as superior to blacks and the only hospital that were allowed to care for African Americans was John Hopkins Hospital. Even though this was the only hospital black people still weren’t given the same care as whites. Henrietta had come from a black community‚ so she and her family were looked down on in the health care community. Henrietta had originally gone to the doctor because she had a lump in her cervix and
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the Drug In Europe A woman was near death from a special kind of cancer. There was one drug that the doctors thought might save her. It was a form of radium that a druggist in the same town had recently discovered. The drug was expensive to make‚ but the druggist was charging ten times what the drug cost him to produce. He paid $200 for the radium and charged $2‚000 for a small dose of the drug. The sick woman’s husband‚ Heinz‚ went to everyone he knew to borrow the money‚ but he could only get together
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