Question

what is the major intracellular cation?
sodium
potassium
chloride
phosphorus

Explanation:

Potassium is the major intracellular cation. Sodium is the major extracellular cation. Chloride is an anion. Phosphorus is an important intracellular anion - related to compounds like ATP but not the major cation.

Answer:

B. Potassium