By atoms it is 50% sodium and 50% chlorine.
By mass (sodium is 23.0, chlorine is 35.5, salt is 58.5) is 39.3% sodium and 60.7% chlorine.
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Sodium, Chlorine, Sulphur, Oxygen, Iron, Hydrogen. (The latter four being impurities) Source: http://en.wikipedia.org/wiki/Kala_Namak#Composition
Salt - is a compound. A combination of sodium and chlorine atoms.
Salt is composed of the elements sodium (Na) and chlorine (Cl).
Sodium and chlorine. Table salt is sodium chloride.Common table salt is composed of one sodium atom and one chlorine atom. Its chemical name, therefore, is sodium chloride, with the formula NaCl.
Table salt is sodium chloride, NaCl.