Pierre Curie and Marie Curie Discovered the Radioactive '21 December'

Pierre Curie and Marie Curie Discovered the Radioactive '21 December'

• 1. Pierre Curie and Marie Curie Discovered the Radioactive Radium Element Pierre Curie and Marie Curie Discovered the Radioactive Radium Element
• 2. Radium was discovered on 21 December 1898 by Marie Curie and her husband, Pierre Curie. Radium was discovered on 21 December 1898 by Marie Curie and her husband, Pierre Curie.
• 3. Marie Curie and Pierre Curie were especially interested in learning more about pitchblende. What was in the one that was giving off radiation, they asked. Then they worked together. Marie Curie and Pierre Curie were especially interested in learning more about pitchblende. What was in the one that was giving off radiation, they asked. Then they worked together.
• 4. Eventually, they isolated a new element that gave off radiation much more intensely than did the pitchblende itself.  Eventually, they isolated a new element that gave off radiation much more intensely than did the pitchblende itself.
• 5. What is Radium? The element with symbol Ra and atomic number 88. Radium sixth element in group 2 of the periodic table, also known as the alkaline earth metals.  What is Radium? The element with symbol Ra and atomic number 88. Radium sixth element in group 2 of the periodic table, also known as the alkaline earth metals.
• 6. Radium is the heaviest known alkaline earth metal. Radium is the only radioactive member of its group. Radium is the heaviest known alkaline earth metal. Radium is the only radioactive member of its group.
• 7. Pure radium is silvery-white in color. İt combines with nitrogen readily on exposure to air and forms a black surface layer of radium nitride. Pure radium is silvery- white in color. İt combines with nitrogen readily on exposure to air and forms a black surface layer of radium nitride.
• 8. ATOMIC NUMBER: 88ATOMIC MASS:226.0254Electronegativity according to Pauling:0.9 ATOMIC NUMBER: 88 ATOMIC MASS: 226.0254 Electronegativity according to Pauling: 0.9
• 9. SYMBOL:RaFAMILY:Group 2 (IIA) Alkaline earth metalPRONUNCIATION: RAY-dee-um SYMBOL: Ra FAMILY: Group 2 (IIA) Alkaline earth metal PRONUNCIATION: RAY-dee-um
• 10. Lonic Radius:UnknownIsotopes:6Electronic Shell:[ Rn ] 7s2 Lonic Radius: Unknown Isotopes: 6 Electronic Shell: [ Rn ] 7s2
• 11. Melting Point:700 °CBoiling Point:1140 °CVanderwaals Radius:0.230 nm Melting Point: 700 °C Boiling Point: 1140 °C Vanderwaals Radius: 0.230 nm
• 12. Thank You Thank You