True or false? sodium is a principal extracellular electrolyte.

Explanation:

Electrolytes are minerals that carry electric charges, positive or negative. Most common electrolytes are: sodium, potassium, calcium, chloride, phosphate, bicarbonate and magnesium. These minerals dissolve in a fluid to form charged ions. They can be located in extracellular and intracellular fluids, in this case, sodium is the major cation (particle with positive charge) located in extracellular fluids (outside cells).

The main function of electrolytes is to maintain homeostasis, which is a property about the capacity of maintain a stable internal condition within a organism. Electrolytes are present in nervous system and muscles functions, to maintain proper hydration and ph levels.