Answer to Question #42879 in Chemistry for asif

Question

what is sodium

Answer 1

Sodium is a chemical element with the symbol Na and atomic number 11. Sodium at standard temperature and pressure is a soft, silvery metal that can be readily cut with a knife, and is a good conductor of electricity. It is highly reactive metal and is a member of the alkali metals; its only stable isotope is ²³Na.
The most important sodium compounds include NaCl, Na₂CO₃, NaHCO₃, NaOH, NaNO₃, Na₂S₂O₃•5H₂O, Na₂B₄O₇•10H₂O.