Question

The chemical symbol of sodium is ____________.
1. Nu
2. Na
3. Sd
4. So

Answer 1

Correct Answer - Option 2 : Na

The correct answer is Na.

• Sodium is a chemical element with the atomic number 11 and denoted by symbol Na.
• It is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table.
• Its only stable isotope is ²³Na. The free metal does not occur in nature and must be prepared from compounds. 
• Sodium is the sixth most abundant element in the Earth's crust and exists in numerous minerals such as sodalite, feldspars, and rock salt (NaCl).

• It is used as a heat exchanger in some nuclear reactors, and as a reagent in the chemicals industry.
• But sodium salts have more uses than the metal itself. The most common compound of sodium is sodium chloride NaCl (common salt).
• It is added to food and used to de-ice roads in winter.