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Mary Curie. Done By Dave. Mary Curie (Maria Sklodowska). Born: 1867 Nov 7 th Death: 1934 Jul 3 rd Field Activity: Physics and Chemistry Her Achievement: Discovery of Radium and Polonium Found out Radium’s property and atomic number. Discoveries.
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Mary Curie Done By Dave
Mary Curie (Maria Sklodowska) • Born: 1867 Nov 7th • Death: 1934 Jul 3rd • Field Activity: Physics and Chemistry • HerAchievement: Discovery of Radium and Polonium • Found out Radium’s property and atomic number
Discoveries • When Mary Curie and Pier Curie was in laboratory, they found out that Peach blend has stronger radioactive than Thorium. They predicted that there will be much stronger radioactive substances in these ores, and as result of their experiment they finally found two radioactive substances from peach blend on 1898. Those were Radium and Polonium, but they were not yet in atom or compounds and Mary Curie tried to get them into atom. Through 4 years, they finally got 0.1 gram of salified Radium. They measured its atomic weight as 255 (actual is 256)
About Radium • AtomicNumber – 88 • Atomic Weight – 226.025g/mol • Melting Point – 700 Celsius • Boiling Point – 1737 Celsius • Specific Gravity – 5 • About – Metal with silver-white color and representative of radioactive substances. Similar to Barium, but Radium has higher volatility.
About Polonium • Atomic Number – 84 • Atomic Weight – 109g/mol • Melting Point – 254 Celsius • Boiling Point – 962 Celsius • About – Polonium produce Polonium dioxide while burning in oxygen. This element was also discovered by Mary Curie and Pier Curie.
How did she Die? • After long time experimenting Radium and Polonium, she finally got disease called leukemia and other diseases caused by radioactivity.
Learner Profile • Knowledgeable – She discovered more elements and put scientific name for it • Risk Taker – She knew radioactive is dangerous, but she did this without any good science equipment and no chimney for toxic substances to go out
Links • http://terms.naver.com/entry.nhn?docId=1086542&cid=40942&categoryId=32269\ • http://navercast.naver.com/contents.nhn?rid=44&contents_id=7058 • http://people.search.naver.com/search.naver?where=nexearch&query=%EB%A7%88%EB%A6%AC%20%ED%80%B4%EB%A6%AC&sm=tab_etc&ie=utf8&key=PeopleService&os=103532 • http://en.wikipedia.org/wiki/Mary_curie • http://en.wikipedia.org/wiki/Radium • http://en.wikipedia.org/wiki/Polonium