Name Sodium
Symbol Na
Atomic Number 11
Atomic Mass 22.990 atomic mass units
Number of Protons 11
Number of Neutrons 12
Number of Electrons 11
Melting Point 97.88 C
Boiling Point 552.9 C
Density 2.62 grams per cubic centimeter
Normal Phase Solid
Family Alkali Metals
Period 3
Cost 15 to 20 cents per pound



Origin of Name From the English word soda; the symbol Na comes from the Latin word natrium
Date and Place of Discovery In 1807 in England
Discovered by Sir Humphrey Davy
Common Compounds
Interesting facts
  • It is found free in nature.
  • It will float on water.
  • It will ignite spontaneously on water.
  • It is abundant in the sun and other stars.
  • It is the sixth most abundant element on earth with 2.6% of the earth's crust.
  • It is the most abundant of the alkali metals.
  • It is found in minerals like cryolite, soda niter, zeolite, amphibole, and sodalite.
Common Uses
  • Glass
  • Soap
  • Paper
  • Textile
  • Chemical
  • Petroleum
  • Metal industries
  • Heat transfer agents


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