Sodium bicarbonate is NaHCO3. (Na is sodium, C is carbon, O is oxygen) It is basic. It is a salt of carbonic acid, a weak acid. Most people know it as baking soda. It will react with acids to produce...
sodium is an element while sodium nitrate is a compound.
Sodium is an element on the periodic table, sodium hydroxide is a compound of sodium (Na) and hydrogen and oxygen (OH)
Basically, sodium is a metal in the Alkali group and Chlorine is a nonmetal in the Halogen group. And a diatomic gas.
Lithium is very light and it is never found in nature while sodium can explode and it is very reactive