Lithium

 


 

Name Lithium
Symbol Li
Atomic Number 3
Atomic Mass 6.941 atomic mass units
Number of Protons 3
Number of Neutrons 4
Number of Electrons 3
Melting Point 108.54 C
Boiling Point 1347 C
Density .53 grams per cubic centimeter
Normal Phase Solid
Family Alkali Metals
Period 2
Cost $300 per pound

 


 

Origin of Name From the Greek word lithos, meaning stone
Date and Place of Discovery In 1817 in Sweden
Discovered by Johan August Arfwedson
Common Compounds
Interesting facts
  • It accounts for only .0007% of the earth's crust.

  • It is the lightest of all metals.

  • It is a soft metal that can be cut with a common knife.

  • It is flammable and can be explosive.

  • It has a high heat capacity.

Common Uses
  • Glass, ceramic and porcelain products
  • Dry cell batteries
  • Nuclear reactor coolants
  • Lubricants
  • Alloy hardeners
  • Pharmaceuticals, mostly to treat manic depressives
  • Hydrogenating agents
  • Heat transfer liquids
  • Rocket propellants
  • Deoxidizer in copper and copper alloys

 

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