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Sodium is an essential mineral for the human body. The most common form of sodium is table salt (sodium chloride). As an added ingredient to most foods - used for curing meat, masking off-flavors, retaining moisture, and enhancing flavors - sodium is typically over-consumed in very high amounts in modern society.
Sodium: the essentials. Sodium is a Group 1 element (or IA in older labelling styles). Group 1 elements are often referred to as the alkali metals. The chemistry of sodium is dominated by the +1 ion Na + .Sodium salts impart a characteristic orange/yellow colour to flames and orange street lighting is orange because of the presence of sodium in the lamp. Soap is generally a sodium salt of fatty acids.roup 1 elements are often referred to as the alkali metals. The chemistry of sodium is dominated by the +1 ion Na + . Sodium salts impart a characteristic orange/yellow colour to flames and orange street lighting is orange because of the presence of sodium in the lamp.