Marie Curie & Radium 01. About Marie Curie 02. About Radium 03. Dangerous of Radium 04. About Marie Curie’s death 01. arie urie Marie Curie was born November 7, 1867 in Poland and died on July 4,1934. As a child, Marie Curie amazed people with her great memory. 01. She learned to read when she was only four years old. Her father was a professor of science and the instruments that he kept in a glass case fascinated Marie. She dreamed of becoming a scientist, but that would not be easy. Her family became very poor, and at the age of 18, Marie became a governess. 01. She helped pay for her sister to study in Paris. Later, her sister helped Marie with her education. In 1891, Marie attended the Sorbonne University in Paris where she met and married Pierre Curie, a well-known physicist. 01. She studied physics and mathematics on a postgraduate(a student who continues to study for an advanced degree after earning a bachelor's degree or other first degree) scholarship. Together with her husband, Pierre, she discovered two new elements and studied the x-rays they emitted(to make). She found that the harmful properties of x-rays were able to kill tumors. 01. By the end of World War I, Marie Curie was probably the most famous woman in the world. Her codiscovery(cooperative development) with her husband Pierre Curie of the radioactive elements radium and polonium represents one of the best known stories in modern science for which they were recognized in 1901 with the Nobel Prize in Physics. 01. In 1911, Marie Curie was honored with a second Nobel prize, this time in chemistry, to honor her for successfully isolating(to separate from another substance) pure radium and determining radium's atomic weight. After the sudden accidental death of Pierre Curie, Marie Curie managed to raise her two small daughters and continue an active career(a job or profession that someone does for a long time) in experimental radioactivity measurements. 02. adium What is RADIUM? Symbol : radium, Ra Atomic number : 88 Boiling point : 2010K (1737℃, 3159℉) Melting point : 1233K (960℃, 1760℉) (disputed) Phase : solid Appearance : silvery white metallic Electron configuration : [Rn] 7s2 Discovered by : Pierre Curie & Marie Curie 02. Radium is a chemical element with symbol Ra and atomic number 88. It is the sixth element in group 2 of the periodic table, also known as the alkaline earth metals. Pure radium is almost colorless, but it readily combines with nitrogen (rather than oxygen) on exposure to air, forming a black surface layer of radium nitride (Ra3N2). 02. All isotopes of radium are highly radioactive, with the most stable isotope being radium-226, which has a half-life of 1600 years and decays into radon gas (specifically the isotope radon-222). When radium decays, ionizing radiation is a product, which can excite fluorescent chemicals and cause radio luminescence. 03. angerous of adium 03. 03. Bone marrows : 骨髓 / 골수 Anemia : 贫血 / 빈혈 Leukemia : 白血病 / 백혈병 Radium drill holes into the bones, they pass through the bone marrows, and they suffer from anemia and leukemia. 04. arie urie’s eath Marie curie was death because of the harmfulness of the Radium. The high energy of the radiation destroys living cells and causes a burn. Lower doses can damage internal organs, cause anemia(a condition in which a person has fewer red blood cells than normal and feels very weak and tired) and increase the risk of cancer. Thanks!