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Alkali Metals

Alkali Metals. By: Rachel, Brittany, Tweeze and Rhiannon. Address—Group one Family Members—Li, Na, K, Rb, Cs, Fr Common Family Characteristics—slivery look. Lithium Li. Parent—Johann Artvedson Birth Place—Sweden Birth Date—1817 Gender—Metal. Physical Description. 3 Protons

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Alkali Metals

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  1. Alkali Metals By: Rachel, Brittany, Tweeze and Rhiannon

  2. Address—Group one • Family Members—Li, Na, K, Rb, Cs, Fr • Common Family Characteristics—slivery look

  3. Lithium Li

  4. Parent—Johann Artvedson • Birth Place—Sweden • Birth Date—1817 • Gender—Metal

  5. Physical Description • 3 Protons • 3 electrons • 4 neutrons • Density- 0.534 g/cm3 • Boiling point- 1342oC • Melting point-180.50oC • Specific heat-3.489J • Thermal conductivity-84.8W

  6. Chemical Description • Valence #-1 • Ion-+1 • Oxidation #-+1 • reactivity- • 3 compounds- 1. Lithium Hydroxide 2. Lithium Stearate 3. Lithium Carbonate

  7. Attributes • (+)—Heat transfer applications, useful for batteries, has medical applications and can be used for lubricants.

  8. Sodium Na

  9. Parent—Sir Humphrey Davy • Birth Place—England • Birth Date—1807 • Gender—Metal

  10. Physical Description • 11 protons • 11 electrons • 12 neutrons • Density-0.971g/cm3 • Boiling point-882.9oC • melting point-97.81oC • Specific heat-1.222J • Thermal conductivity-142W

  11. Attributes • (+)—Animal nutrition, glass, soap, textile, chemical, etc.

  12. Potassium K

  13. Parent—Sir Humphrey Davy • Birthplace—Germany • Birth date—October 6, 1807 • Gender--Metal

  14. Physical Description • 19 protons • 20 neutrons • 19 electrons • Density—0.862g/cm • Boiling point—770oC • Melting point—63oC • Oxidation #--1 • Valence #--1

  15. Rubidium Rb

  16. Rubidium’s Parents • Robert Bunsen • Gustav Kirchhoff • Discovered Rubidium in 1861 in Germany

  17. Gender and Description • Alkali Metal • 37 Protons and Electrons • 48 Neutrons • Boiling Point: 963 K • Melting Point: 312.45 K • Specific Heat is 0.363 J • Electric Conductivity is 47.8 X 10 ^6 • Valence #1 • +1 Ion • Compounds: RbH (Rubidum Hydroxide), RbCl (Rubidium Cloride), RbO (Rubidium Oxide)

  18. Positive Attributes • Has been used for dating rocks like in carbon dating • Produces salts used in glass and ceramics

  19. Negative Attributes • Not known to be toxic

  20. Attributes • (+)—Potassium is used for the growth in plants. It helps cells, tissues and organs to function properly. • (-)—Low levels of potassium can cause high blood pressure

  21. Cesium Cs

  22. Cesium’s Parents • Robert Bunsen • Gustav Kirchhoff • Discovered Cesium in 1860 in Germany

  23. Gender and Description • Alkali Metal • 55 Protons and Electrons • 78 Neutrons • Boiling Point: 963 K • Melting Point: 301.6 K • Specific Heat is 0.24 J • Electric Conductivity is 5.3 X 10 ^6 • Valence #1 • +1 Ion • Compounds: CsOH (Cesium Hydroxide), CsCl (Cesium Cloride), CsO (Cesium Oxide)

  24. Positive attributes • Used for atomic clocks (very accurate), and is used as a catalyst in hydrating organic compounds

  25. Negative Attributes • Can be very harmful, it is mildly toxic and has to be protected from air and water by keeping it under inert gas/liquid or in a vacuum

  26. Francium Fr

  27. Parent—Mlle • Birthplace—France • Birth date—1939 • Gender--Metal

  28. Physical Description • 87 protons • 87 electrons • 136 neutrons • Density—1.873g/cm • Melting point—27oC • Boiling point—677oC • Atomic weight—223g • Atomic Radius—270pm(10-12)

  29. Chemical Description • Valence #-1 • Oxidation #-1 • Ion-+1

  30. Works Cited • http://www.umm.edu/altmed/articles/potassium-000320.htm • http://www.webelements.com/compounds/lithium • http://www.webelements.com/compounds/soduim • http://periodic.lanl.gov/elements/87.html • http://enviromentalchemistry.com/yogi/periodic/Fr.html • http://www.newton.dep.anl.gov/askasci/gen99/gen99578.htm

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