Symbol Na
Atomic Number 11
Atomic Mass 22.990
Discovered by Sodium was discovered by Humphry Davy

Physical Properties of Sodium

  • Sodium has a strong metallic lustre and in colour is very analogous to silver.
  • It is soft at common temperatures that it may be formed into leaves by the pressure of the fingers.
  • Sodium compounds soon tarnish on exposure to the air, though less rapidly than potassium.
  • Sodium is instantly oxidized by water, hydrogen gas in temporary union with a little sodium being disengaged.

Chemical Properties of Sodium

Group 1 Melting point 97.794°C, 208.029°F, 370.944 K
Period 3 Boiling point 882.940°C, 1621.292°F, 1156.090 K
Block s Density (g cm−3) 0.97
Atomic number 11 Relative atomic mass 22.990  
State at 20°C Gas Key isotopes 23Na
Electron configuration [Ne] 3s1 CAS number 7440-23-5
ChemSpider ID 4514534 ChemSpider is a free chemical structure database

What is Sodium?

  • Sodium is a member of the alkali metal family with lithium and potassium. Being one of the two elements in our table salt is its the biggest claim to fame.
  • We get sodium chloride (NaCl) when sodium bonds with chlorine (Cl). It is also used as a salt in fertilizers.
  • Sodium is reactive, soft metal with a low melting point and most important of all the alkaline metals from the commercial point of view. Sodium reacts rapidly with water, snow, and ice to produce sodium hydroxide.
  • When metallic sodium is exposed to air, it loses its silver appearance and develops an opaque grey colour layer which is a coating of sodium oxide. Sodium does not react with nitrogen even at very high temperatures but reacts with ammonia to form sodium amide.
  • Sodium reacts with hydrogen above 200ºC to form sodium hydride. It also reacts with various metallic halides to form sodium chloride and the metal.
  • With an atomic number of 11, it is represented by the symbol Na in the Periodic table.

Uses of Sodium

  • It also used in improving the structure of certain alloys; soaps, purification of molten metals and in sodium vapour lamps.
  • Sodium is a component of sodium chloride, which is a very important compound found in the living environment.
  • Sodium is important in the manufacturing of organic compounds and in making esters.
  • Solid sodium carbonate is required in making glass.

Also, Read:
Sodium Borohydride
Titration of Hydrochloric Acid against Standard Sodium Carbonate
Titration of Oxalic Acid against Sodium Hydroxide

Related Elements

Hydrogen Nickel Neon Potassium
Helium Copper Cobalt Calcium
Lithium Zinc Magnesium Scandium
Beryllium Gallium Aluminium Titanium
Boron Germanium Silicon Vanadium
Carbon Arsenic Phosphorus Chromium
Nitrogen Selenium Sulfur Manganese
Oxygen Bromine Chlorine Iron
Fluorine Krypton Argon
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1 Comment

  1. it was a well explained

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